Might I suggest:
KB Bluetooth LX360
The KB Bluetooth LX360 keyboard is an excellent desktop solution for all ambitious users. This supreme keyboard has slim and sleek design with laser printed keys, and the soft touch design brings you the best keystroking experience in the daily office work.
Fujitsu order code:S26381-K540-L402
Datasheet:http://docs.ts.fujitsu.com/dl.aspx?id=c ... 774537a19a
For all Q550 accessories see: http://ts.fujitsu.com/recommended-acces ... -q550.aspx