Summary: This is a great little portable keyboard. I dropped it and it didn't even break. Cheap and pretty good quality. I like the sound of a cheaper keyboard for some reason. Only downside for me is the size and position of the left ctrl key.
Summary: This keyboard replaced one of the same size and keypad layout. It works for me. I mostly type on the Internet. For those who do word processing and normal keyboard functions,would really prefer standard layout. Working with the NumLock key off is should be stated somewhere with this keyboard.
Summary: Great for narrow keyboard needs (just got mine today). Has integrated arrow keys and numeric keypad. If you try to log into a computer with the new keyboard, make sure the num lock is off, or you'll be typing the wrong password. Also, see where you hit the space bar. If it's beneath the M key, then this keyboard IS NOT FOR YOU, as there's an ALT key there (I would have preferred the space bar to be one key longer).
Summary: The keyboard works perfectly. The track-ball mouse, however, does not. Before ordering, I looked carefully for system requirements and could not find if it would install on XP. It is a plug 'n play so installation is not necessary, but the mouse does not function with XP so it does not work properly on my computer.