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Onkyo TW21A: The 21-inch Tablet PC

by Paul Strauss

I’ve always wanted something a bit bigger than my iPad that I could use for both desktop and laptop computing, but carrying around a 21-inch PC seems like it might be a bit of overkill. But weighing in at 11 pounds, it sounds like Onkyo’s TW21A tablet PC [JP] isn’t really designed for portability anyhow.


This oversize Windows 8 tablet is basically one of those touchscreen AIO PCs but can lay flat, so it can be used on a tabletop. It also supports up to 10 points of input at the same time, so multiple users can interact with it at the same time. You can prop it up like a traditional AIO PC too. It also has VESA mounting screw holes so you can easily attach it to a wall mounting bracket.

One thing that definitely sets it apart from desktop PCs is that it will actually run on battery power, and has a 2200 mAh lithium-ion pack built in – though with a screen that big, and a beefy CPU in the best model, I can’t imagine battery life is great.


The TW21A-B3C67 – the top of the line model of the capacitive-touch tablet PC – features a full 1080p (1920×1080) HD display, and is powered by an Intel Core i7 2.9GHz CPU. Other specs include both USB 2 and 3.0 ports, 802.11 b/g/n Wi-Fi, Bluetooth 4.0, 8GB of RAM, 128 GB SSD storage, and a built-in 1.0MP webcam. There are two less expensive configurations, both of which decrease CPU power and SSD capacity, and the bottom of the line has less – and slower – RAM.

This Jumbo Japanese import is a little hard to come by stateside, but the guys over at Dynamism have you covered – though at $2599(USD), it’s quite expensive for what it is. If you’re fortunate enough to live in Japan, you can find the TW21A-B3C67 for ¥154,800 (~$1772) over on Amazon Japan.

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