ASUS announced its first new Windows 10 hardware at Computex, the Transformer Book T100HA. It's a tablet that can also be a small notebook that comes in a variety of different colors, too.

On size and specs it's going into a similar market segment to the Surface 3, so it needs to bring its 'A' game.

Recapping on the main specs, the T100HA has a quad-core Intel Atom X5 CPU, 4GB of RAM, USB-C and options for 32, 64 and 128GB of eMMC storage. We're told to expect it on sale sometime in August, and Microsoft also featured it during its own presentation at the event.

So, what's it like? The video above gives you some flavour for it, but one of the things we're most keen to test out in the real world is the claimed battery life. ASUS says it can hit 14 hours, and since there's apparently no battery in the keyboard dock, that means 14 hours from the tablet portion. And that's incredibly impressive, if even close to being true.

In terms of design and construction, there's nothing unexpected. It's relatively slim, not too heavy and well put together. We can't judge anything in terms of software performance, since the T100HA on display was running Windows 10 Technical Preview build 10125.

The Transformer Books certainly have their fans, and the T100HA should cater well to those looking for a tablet, but also something they can get some work done on from time to time. One of the big dogs here is the Surface 3, but we'll have to wait a little longer to see if it represents a compelling alternative. Price will be important, but first impressions are good.

And it's great to see Windows 10 devices start to hit the public arena. ASUS is an important partner for Microsoft, and it's throwing some early weight behind the new OS.