Microsoft Comfort Curve Keyboard 3000

The latest in Microsoft's line of ergonomic keyboards, the Comfort Curve Keyboard 3000 is also the most affordable model in the line, and features perhaps the most unique design. The curved, contoured shape of the keyboard is a dramatic departure from standard keyboard designs, and with only a standard USB connection, the Comfort Curve Keyboard 3000 also has a reasonable $25 price tag. Keep shopping if you're interested in a more feature-filled keyboard, or a wireless model, but we like the Comfort Curve Keyboard 3000 for providing an affordable, straightforward typing experience with consideration for your physiological wellbeing.
No ergonomic design will fit everyone, but the general idea is that it minimizes wear on your joints to keep your hands perpendicular to the table and your wrists straight while typing. Extending that ideal through a product design would bring you an upright keyboard that's split in two. Such a design has been tried before, but in general, ergonomic keyboard designs take a less committed approach, as Microsoft did here.

The Comfort Curve Keyboard 3000 is arguably the most extremely ergonomically designed of Microsoft's keyboards. The Wireless Comfort Desktop 5000 and the Comfort Curve Keyboard 2000 have a gentler arc on the leading edge, and they also have no elevation in the middle of the keys. Logitech's Wireless Keyboard K350 is probably the closest to the Comfort Curve Keyboard 3000 in terms of its ergonomic profile, although the K350 goes a bit further with a more contoured design. Unlike the Logitech board, the Comfort Curve Keyboard 3000 only has a single rise, which peaks between the centrally located G and H keys.
Although Microsoft's Comfort Curve Keyboard 3000 offers a simpler ergonomic design than the Logitech board, it's also more affordable. You'll find the Comfort Curve Keyboard 3000 available for between $20 and $30, whereas the Logitech K350 sells for around $50. This price disparity makes sense in light of the difference in features.

 Techical specifications

Taken from CNET