Zalman ZM-K900M Keyboard Review

The ZM-K900M replaces the ZM-K700M (which we reviewed earlier) as Zalman’s flagship keyboard. Adding in more lighting options and switch choices, the K900M expands on the market that the K700M targeted. The keyboard is still obviously aimed at gamers, with flashy visuals and gamer-typical marketing features such as n-key rollover (NKRO) and a high polling rate, but the addition of clicky (Blue) and tactile (Brown) options may actually please gamers disappointed at the Cherry MX Red-only K700M.

Although in many ways the same, the K900M also includes some small (and big) changes, including a case redesign. The relatively restrained look of the K700M had been replaced by a more aggressive-looking, gamer-oriented design. The suggested retail price ($100) is actually lower than that of the K700M ($139).


Being Zalman’s flagship keyboard, a fair amount of extra features are present. Apart from fairly standard options such as media shortcuts, shortcuts to applications and websites (including, somewhat strangely, Zalman’s own website), volume controls, and a gaming lock, the K900M also features an adjustable repeat rate, a PS/2 option (via the included adapter), and eight programmable macro keys. These macro keys offer several customization options such as an adjustable output rate (so keys can be reproduced at the same speed as entered or faster), and even the option to include right and left mouse buttons and the clickwheel into the macros.

Note that there are no separate buttons for any of these features; all are present on a function layer over the keyboard’s normal keys, shown as tertiary legends.

As we found with the K700M, the manual included with the keyboard is useful for discovering all the features (and mandatory for understanding all the sub-legends), but, again, several features (in this case the email, media player, and calculator shortcut buttons) never worked.

An old-fashioned, but very useful feature is the inclusion of a cable gutter that can lock the cable in one of five positions. This means that the lead will be much less in the way and will not flop around as much. On a personal note; I wish more manufacturers would re-introduce this feature on their keyboards.

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Lenovo’s (Conservative) VR Gambles

Lenovo is a huge company with loads of resources and IP around hardware, which means it can afford to gamble a bit on the XR revolution. And gamble it has, with three devices for two different platforms that offer AR, MR, and VR capabilities.

Augmented Reality

On the AR side, Lenovo is one of only two companies (Asus is the other) with the chutzpah to build a shipping device loaded with Tango technology. We took a long look at the Lenovo Phab 2 Pro with Tango and found it to be what we called a necessary half measure, but Tango’s importance was brought to bear with the announcement at Google I/O that the new spate of standalone VR devices built on Qualcomm’s Snapdragon 835 VR platform will use Tango for their inside-out tracking.

It’s important to parse out that the Tango implementation on the Phab 2 Pro is fundamentally AR, whereas on the standalone devices, there’s no AR or MR component–there’s no camera passthrough, so the HMDs are VR and use Tango’s technology for tracking only.

In any case, Lenovo boldly rolled the dice on Tango, and it seems that’s won, to an extent–not in AR (yet), but certainly in VR.

Virtual Reality

Google announced that so far, only two companies will be making Snapdragon 835-based standalone HMDs running Daydream VR: HTC (with a version of the Vive) and Lenovo.

Thus, Lenovo has eagerly jumped into the Android-based VR waters and has embraced Daydream. Surely, its expertise making phones and tablets generally (especially with Qualcomm chips), and its work with Tango on the Phab 2 Pro specifically, made this move an easy one–at least in terms of engineering.

In terms of marketing products, Daydream is already established, far moreso than Tango anyway, and it has the full might of Google behind it. In that sense, manufacturing this HMD is much less of a gamble than putting Tango on a smartphone and crossing your fingers. Still, it’s somewhat of a risk, considering the still-nascent stage of VR and the fact that these standalone HMDs are, well, standalone devices–they’re not a value-add of the phone you’re already going to buy.

Mixed Reality

We’ve known for months that Lenovo was part of the Windows Mixed Reality HMD movement. We even saw a (non-functioning) prototype at CES this January. But since then, Lenovo had gone quiet about its WMR HMD, and the company’s product was noticeably absent last week at Build when Microsoft announced that the first two WMR HMD dev kits were coming from Acer and HP.

We also raised an eyebrow when we noticed that the rendering of Lenovo’s standalone Daydream HMD looked an awful lot like its WMR HMD. However, a Lenovo rep confirmed to Tom’s Hardware that the company is still on track with both Daydream and WMR HMDs. The person also confirmed that the two devices are not related; we take that to mean that the design teams just modified one to fit the other’s requirements, rather than go back to the drawing board, but that they’re truly different devices.

As we’ve stated before, though, the Windows Mixed Reality headsets, as they’ve been announced and defined so far, don’t actually offer mixed reality capabilities. They’re fundamentally VR headsets, and we have no reason to think that the Lenovo version will be any different.

However, two items lead us to believe that devices capable of mixed reality are on Lenovo’s horizon. First of all, the Windows Mixed Reality platform does support actual mixed reality; it’s just that the devices announced so far don’t, so it’s reasonable to assume that such a device is on Lenovo’s roadmap. (Chances are, Microsoft will be the one to define those specs and possibly even create a reference design that Lenovo and others will build from.)

Second, as we pondered earlier, there’s no apparent reason why the standalone Daydream VR HMDs–which are, again, equipped with Tango technology–couldn’t offer mixed reality. Lenovo has already proved, with the Phab 2 Pro, that it’s possible to offer camera passthrough on a device running Tango.

Thus, in a way, Lenovo is poised–moreso than any other company–to produce a standalone device (and/or a “dumb” VR peripheral for Windows Mixed Reality) capable of actual mixed reality.

Spreading Out The Risk

The whole picture here is that Lenovo doesn’t want to miss out on XR. Instead of gambling on one thing or another, it’s waded into the waters across multiple devices and multiple platforms with multiple capabilities. Basically, whatever segment of VR “takes,” Lenovo is there.

(The exception is high-end gaming, which is dominated by Rift and Vive, although it’s possible that high-end WMR HMDs connected to powerful PCs could make a go of it. We’ve already seen that hardware makers other than HTC are allowed play in the SteamVR space, so there’s no reason Lenovo couldn’t insert itself there, too.)

In the meantime, Lenovo’s risks are paying off in the sense that it’s building institutional knowledge and IP and establishing key partnerships across the XR spectrum. Being bedfellows with Google, Microsoft, and Qualcomm is not a bad way to ensure future success.

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Chuwi Hi13

As far as Chinese tech companies are concerned, broadly speaking, there are three categories. Firstly, the big hitters like Huawei or Lenovo, that can afford to charge premium prices for their products. Then there are the firms which cannot charge premium prices because they don’t have the relevant quality products, and lastly, the vendors that do not charge a premium, but yet do have products that can compete with the bigger players.

Chuwi firmly belongs in that final category and it has gradually built a following with products that strike the right balance between features and pricing. The Hi10, Hi12, LapBook and HiBox have all cemented the manufacturer’s reputation as being a challenger rather than a follower.

With the Hi13, Chuwi wants to change gear and aim for the mainstream market. This is a 2-in-1, detachable laptop that features a so-called 3K display, one that can only be found on one other comparable device – Microsoft’s Surface Book.

The term comparable is used loosely here as the two products have some significant differences. The cheapest Surface Book costs £1,299 at the time of writing ($1,499 in the US, or AU$2,299) while the Chuwi Hi13 can be purchased for around £270 (about $350, AU$470) from Gearbest, the online retailer that provided us with the review sample.

That price is for the tablet only. Add the official keyboard with magnetic docking along with the stylus and the price goes up to around £330 (about $430, AU$575); but that’s still a big, fat 75% less than Microsoft’s signature detachable.

Note that those Hi13 prices are exclusive of any taxes that may be levied by HMRC or the courier companies on behalf of the vendor. Want to buy tech from online Chinese retailers? Read this first.

The influence of the Surface Book can be seen very clearly in the design here. Chuwi went for an all-metal unibody for the chassis, one that was machined using a CNC process. 

It is dense, solid, and is a far cry from the wobbly, flexing entry-level tablets that Chinese manufacturers often churn out. At 9.2mm on its own and 16.5mm with the keyboard, the Hi13 is surprisingly large given that it is a 13.5-inch device.

The thicker bezel means that it has almost the same form-factor as a 15-inch laptop, and at 2kg (1.1kg for the tablet and 900g for the keyboard) it’s almost twice the weight of the Dell XPS 13, the smallest 13.3-inch laptop on the market.

Speaking of the keyboard, it can either be removed or used in three other positions (tent, stand and laptop mode), all of which are faithfully reproduced from the playbook of Lenovo’s award-winning Yoga. The Hi13 connects keyboard to tablet via a thick hinge which makes using it on your lap – as a laptop – uncomfortable, indeed verging on painful.

At any rate, while the top-line feature matches the Surface Book – an absolutely gorgeous 13.5-inch 3,000 x 2,000 pixel IPS 10-point touchscreen display – the rest of the hardware configuration lags behind. But that’s no surprise given the price; obviously something had to give.

The processor used is an Intel Celeron N3450, part of the Apollo Lake family. It is a 6W, 14nm part with four cores, four threads, a base frequency of 1.1GHz, a burst frequency of 2.2GHz and 2MB L2 cache. Such a low TDP means that the Hi13 has a fanless design – the integrated graphics (Intel HD Graphics 500) runs at 200MHz and can overclock to 700MHz.

There’s 4GB of LPDDR3 memory, 64GB eMMC ROM (which is significantly slower than an SSD), Intel-sourced 802.11ac Wi-Fi, two cameras, Bluetooth 4.1 and a 5,000mAh battery which can be charged using a 24W (12V, 2A) power adaptor, one that connects to the USB Type-C port.

Sadly the latter cannot be used for transmitting data, while the notebook’s microUSB connector can’t be used for charging; that’s only for data. The latter is located on the same side as the earphone jack, a micro-HDMI port, the aforementioned Type-C connector and a microSD card slot.

There are no full-size USB ports this time around, although the keyboard dock adds two full-size USB 2.0 ports. A volume rocker and the power button can also be found on another edge of the Hi13.

Regarding battery longevity, Chuwi’s tablet fell just short of five hours when playing a YouTube video at full brightness, which is less than we were expecting – but then a 6-megapixel display is likely to consume far more power than lower resolution screens.

Speaking of the display, it covers 100% of the sRGB colour gamut with a 480 nits brightness and a 3:2 aspect ratio. There’s very little colour shift, guaranteeing excellent viewing angles. Images look sharp and colour reproduction is spot-on to the naked eye.

But the display isn’t without flaws. There is a tiny but noticeable gap between the actual screen and the digitizer glass panel, and it doesn’t use Corning’s Gorilla Glass technology to protect it from scratches.

Having such a large surface to work with brings the active stylus pen, called the HiPen H3, to life thanks to 1,024 levels of pressure sensitivity. The stylus has two buttons, performs reasonably well and is powered by a AAAA battery. You won’t be able to hold the tablet for long, though, if you intend to use it at arm’s length, simply due to the weight of the thing.

Another pleasant surprise is the fact that Chuwi also managed to integrate four speakers on the Hi13 – one in each corner – which does improve the audio performance of the tablet in general compared to other similar-priced models. Just don’t expect miracles here as the sound is quite muffled and lower than expected.

Benchmarks show that the Hi13 is still a very capable machine despite sporting a Celeron processor. For example, it scored a commendable 166 on Cinebench, which is about half what a Kaby Lake Core i5-7200U, as seen in the Asus AsusPro B9440UA for example, can achieve.

Early verdict

Well, well; the Hi13 lived up to our high expectations. There are inherent disadvantages associated with a device of this size, like the fact that it is top-heavy, or has a shorter battery life because of the display. And there are corners cut, as well, but they don’t impact too negatively on the overall user experience once you take the price into account.

Chuwi judiciously opted for a far more capable Celeron processor (rather than an Atom one), and paired it with just enough RAM and storage, with the centrepiece being the excellent 3,000 x 2,000-pixel display.

Compared to the Surface Book or even the Apple iPad Pro (12.9-inch), this hybrid presents a more affordable, dare we say mainstream, alternative if you are in the market for a large format tablet with pen input capabilities.

The irony is that potential customers are more likely to balk at the price tag – even if it is a fraction of what the competition charges – because of the risks associated with purchasing an item from abroad.

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TunnelBear VPN

VPNs can seem a complicated technology, packed with low-level geeky details that hardly anyone understands, but check the TunnelBear site and you’ll quickly realise this service does things differently.

The Canadian-based company doesn’t drown you in jargon. There’s no talk of protocols, no mention of encryption types, barely any technical terms at all. Instead the site focuses on the fundamentals, such as clearly explaining why you might want to use a VPN in the first place.

This approach won’t work for everyone. We ran some searches and found the word ‘DNS’ appeared 10 times on, for instance, compared to 1,130 on – if you’re an experienced user and would like to know more about the underlying service, you’re likely to be disappointed.

Still, the basic service specs are appealing. TunnelBear now offers servers in 20 countries spread all around the world: Europe, US, Canada, Hong Kong, Mexico, Japan, Singapore, India, Brazil, and (for paid plans) Australia.

Setup is easy, thanks to custom clients for iOS, Android, Mac and Windows, as well as a browser extension. TunnelBear supports up to five simultaneous connections, too, so you can mix and match these as required.

While the standard free account restricts you to a horribly limited 500MB of traffic a month, TunnelBear’s special TechRadar plan offers a far more generous 5GB. That gives you many more browsing options, and for instance could allow you to watch 20 minutes of streaming 480p video every day, and still have some browsing time left over. 

If you need more, upgrading to a paid plan gets you unlimited data starting at a reasonable $5 (£4) a month, paid yearly.


TunnelBear’s website proudly displays what looks like a very clear no-logging policy: “TunnelBear does NOT log any activity of customers connected to our service. Period. Your privacy is paramount.” Just about every other VPN service says the same, though – can we really trust what the company says?

No outsider can ever be completely sure how a VPN operates, but what we can say is TunnelBear’s privacy policy is far more transparent than just about anything else we’ve seen. While others talk vaguely about capturing ‘some’ data for operational reasons, TunnelBear lists every item, explains what it is and why it’s needed. 

There are no nasty surprises, or even anything mildly unpleasant. The company stores your email address, first (not last) name, plus the total amount of data used this month. It also stores the OS version of your device, which you might not expect. But we can see why it might be helpful to know that, and a provider knowing that you’re running an iOS 10.3 device really isn’t a privacy risk.

What’s more interesting is the list of data the company doesn’t collect. Not only does it not record any information about the websites and services you access when online, it doesn’t even record the session data often logged elsewhere (your incoming IP address when you initiate a connection, and the IP address you’re assigned).

Some companies try to bury sneaky clauses in the terms of service pages, but again TunnelBear is very different. Not only is the document relatively short (1,500 words), but each section has a brief and plain English summary to help you understand it.

If you don’t want to read a 200 word block of text which kicks off with: “TunnelBear is providing this service on an ‘as is, as available’ basis without representation or warranty of any kind”, for instance, just glance to the right for the summary line. This simply states: “Sometimes things break. We do our best.”

We drilled down into the details, anyway, but didn’t spot any significant issues. The closest we came was a clause forbidding you from taking “any action that results in an unreasonable load on TunnelBear’s infrastructure”, which is so vague as to be almost useless. But even there, most VPNs have a similar ‘acceptable use’ clause somewhere, and you’re most unlikely to run into any issues with a bandwidth-limited free account.


TunnelBear’s setup process is carefully designed to be as quick and hassle-free as possible. We clicked the ‘Get started’ button at the top of the site, then a simple form asked us to enter a username and password, and the site automatically downloaded the right client for our system. Easy.

You need another client? Log in using your credentials on any other device and you’ll find links to Windows, Mac, iOS and Android clients, as well as browser extensions for Chrome and Opera.

Using our Windows client was just as simple. After a standard install, we were able to log in by choosing a server location on a map. We clicked Germany, were allocated a new IP address within seconds and could browse in privacy. Tapping another button turned the protection off again.

TunnelBear isn’t quite as basic as it looks. Our client blocked DNS leaks automatically. It enables using TCP connections for greater reliability. There’s an extra-stealthy GhostBear option to make your activities seem more like regular internet traffic, and the client can automatically kick in if you connect to anything other than a trusted network. Even some supposedly ‘advanced’ clients can’t always do that.

We completed our tests by running various performance benchmarks*. Local downloads were speedy at 30Mbps or more, while UK-US connections were a reasonable 10 to 20Mbps, depending on the server.

Switching to a far-distant location such as Singapore saw download speeds fall to 2Mbps, but that’s not unusual, and it’s still just about usable for basic browsing. Overall, TunnelBear’s free plan delivered very acceptable performance – we’ve seen paid products that are significantly worse.

Final verdict

Exceptionally easy-to-use, TunnelBear is a great free VPN for networking newbies.

Try out TunnelBear VPN for free here.

*Our testing included evaluating general performance (browsing, streaming video). We also used to measure latency, upload and download speeds. We then compared these results to other VPN services we’ve reviewed. Of course, do note that VPN performance is difficult to measure as there are so many variables.

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Microsoft’s next Surface Pro revealed in newly-leaked images

A number of press renders have leaked online showcasing the alleged successor to Microsoft’s Surface Pro 4 tablet, the so-called ‘Surface Pro’.

Microsoft has not only denied a May 23 announcement date for a Surface Pro 5, but also denied its existence, which would make sense if their next entry into the series is indeed dubbed simply, the Surface Pro.

Based on the renders, the aesthetics don’t seem to have changed all that much from the Surface Pro 4, typical of a refresh and minor release. A number of accessories for the tablet will reportedly be available in multiple colors, including a stylus, keyboard and mouse.

The official launch will come with Microsoft’s event in Shanghai on Monday, May 23, but you can check out the leaked renders below courtesy of VentureBeat.

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BBC fools HSBC voice recognition security system

Security software designed to prevent bank fraud has been fooled by a BBC reporter and his twin.

BBC Click reporter Dan Simmons set up an HSBC account and signed up to the bank’s voice ID authentication service.

HSBC says the system is secure because each person’s voice is “unique”.

But the bank let Dan Simmons’ non-identical twin, Joe, access the account via the telephone after he mimicked his brother’s voice.

HSBC introduced the voice-based security in 2016, saying it measured 100 different characteristics of the human voice to verify a user’s identity.

‘Really alarming’

Customers simply give their account details and date of birth and then say: “My voice is my password.”

Although the breach did not allow Joe Simmons to withdraw money, he was able to access balances and recent transactions, and was offered the chance to transfer money between accounts.

“What’s really alarming is that the bank allowed me seven attempts to mimic my brothers’ voiceprint and get it wrong, before I got in at the eighth time of trying,” he said.

“Can would-be attackers try as often as they like until they get it right?”

Separately, a Click researcher found HSBC Voice ID kept letting them try to access their account after they deliberately failed on 20 separate occasions spread over 12 minutes.

Click’s successful thwarting of the system is believed to be the first time the voice security measure has been breached.

HSBC declined to comment on how secure the system had been until now.

A spokesman said: “The security and safety of our customers’ accounts is of the utmost importance to us.

“Voice ID is a very secure method of authenticating customers.

“Twins do have a similar voiceprint, but the introduction of this technology has seen a significant reduction in fraud, and has proven to be more secure than PINS, passwords and memorable phrases.”

Account open

“I’m shocked,” said Mike McLaughin, a security expert at Firstbase Technologies.

“This should not be allowed to happen.

“Another person should not be able to access your bank account.

“Voices are unique – but if the system allows for too many discrepancies in the voiceprint for a match, then it’s not secure.

“And that seems to be what’s happened here.”

Prof Vladimiro Sassone, an expert in cyber-security, from the University of Southampton, said biometrics could, in general, be an effective security layer, but there were dangers if companies put too much faith in something that was not 100% secure.

“In principle there should be no room for error at all,” said Prof Sassone.

“It should be good at the first attempt.”

“Voice identification is not like a password system.”

“You can’t forget your voice or get the wrong one.

“After two attempts, systems should be able to say whether it’s a match or not and alert the bank and user if further attempts are made.”

Prof Sassone said using unique biometric traits as a verifier should make it harder for hackers – but if they should be copied by criminals, users could not then change their voice, face, or fingerprint as they would a password.

“If you have to prove it wasn’t you who accessed your account – that it was either a mimic or computer software – then how are you going to do that?” he asked.

“Especially if the bank is claiming the system is perfect.”

Security expert Prof Alan Woodward, from the University of Surrey, said it was dangerous to rely on one biological characteristic to authenticate someone, even if it was one unique to that person.

“Biometric based security has a history of measurements being copied,” he said.

“We’ve seen fingerprints being copied with everything from gummy bears to photographs of people’s hands.

“Hence, biometrics, just like other aspects of security, will always have to evolve as measures emerge to threaten them.

“Security is a story of measure and counter-measure.”

He said HSBC probably needed to reassess its technology and ideally add another “factor” alongside the voiceprint check to authenticate identity.

“As well as requiring something you are, it would require something you know or something you have, like a PIN,” he said.

“That makes it much more difficult to compromise.”

It is not just the ability of humans to fool computers that is worrying some high-tech companies.

Start-up Lyrebird is working on ways to replicate a voice using just a few minutes of recorded speech.

Co-founder Jose Sotelo said there was no doubt this had “implications” for voice identification systems.

“We are working with security researchers to figure out the best way to proceed,” he told Click.

“This is one of the reasons we have not published this to the public yet.

“It’s a scary application but we believe that we should be careful and should not be scared of technology and we should try to make the best out of it,” he said.

“One idea we are considering is to watermark the audio samples we produce so we are able to detect immediately if it is us that generated this sample.”

You can see the full BBC Click investigation into biometric security in special edition of the show on BBC News and on the iPlayer from Saturday, 20 May.

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Review: Review: Toshiba Portégé X20 PRT13A-05S002 convertible laptop

Don’t let the diminutive, simple lines of the latest Portégé fool you – this is a lion in a business suit. It mightn’t have the laser cut lines of fashionable convertibles, or a glossy aluminium chassis, but hiding beneath that simple black exterior is a laptop that will get the job done quickly and efficiently.

The 12.5-inch display makes this even smaller than most ultraportable convertibles, helping to keep its weight down to a mere 1.1kg for the base model. At this price point the HD resolution is a little hard to swallow, with competitors offering up 4K screens for just a few hundred dollars more, but Toshiba has focused on performance first and foremost. Besides, with the panel being so small, it’s still superbly clear, and the matte finish makes it usable in even the brightest conditions. Despite the tiny size, it’s a little chunkier than the competition, measuring 15.4mm at its deepest, but thanks to the low weight you won’t notice carrying this around all day. A simple twin-hinge mechanism allows the screen to flip through the full 360 degrees, and it’s surprisingly resilient to the bounce-back factor when using the touch-screen. 

Considering the slightly thicker dimensions, we were a little surprised at the lack of I/O options. A single USB 3.1 Type C port is on the left, with another USB 3.0 Type A on the right. Thankfully Toshiba also includes a Type C docking port, which brings HDMI, another USB Type C and USB Type A connection to the single Type C port integrated into the laptop. It’s great to see that the Type C port is also fully Thunderbolt 3 compatible, delivering a whopping 40Gbps of bandwidth.

Toshiba has turned to stylus professionals Wacom to deliver the Wacom ‘Feel’ technology pen, which can detect up to 2,048 differing levels of pressure, perfect for tablet sketches and quick mock-ups. Twin IR cameras deliver accurate facial recognition via Windows Hello sign-in feature, and is one of the more secure methods of biometric security currently available. The keyboard is a little small, a trade-off given the chassis’ small size, but at least it’s backlit and there’s plenty of separation between each key. 

Taking a look at the PCMark 8 Home Accelerated score shows that underneath the keyboard lies some serious hardware. Our review sample came with Intel’s latest Core i7 7600U CPU. It may only be a twin-core model, but the Boost speed of 3.9GHz is industry-leading, without sapping battery life. Our battery result of 262 minutes is excellent, showing this laptop should easily handle 9 to 5 duties unless you’re being excessively demanding. HyperThreading is also included to allow for up to four threads of instructions at a time. The CPU has been combined with 16GB of memory, so it’s no wonder this machine performed so well in our tests, taking out the second top spot after the much larger, heavier Metabox gaming machine. 

In terms of storage, Toshiba has gone for a Samsung 512GB M.2 drive in our sample, but that’s as big as you can get – there’s no option for a 1TB version. Integrated 802.11ac WiFi via a 2×2 transmitter/receiver delivers excellent wireless performance, though there’s no Ethernet backup if you find yourself stuck in cable-town. 

It might not be flashy or pretty, but this is a machine for professionals who want to get the job done. With impressive performance and battery life, not to mention the incredibly light weight, it’s the perfect convertible for those who don’t mind a slightly smaller form-factor. Throw in Toshiba’s excellent support for businesses thanks to its comprehensive office-focused software, and it’s the perfect contender for an office convertible that does the job ably and swiftly. 

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