IBM Enterprise Server H80 Series - Manual (Page 28)

All of the keyboards adjust for typing comfort. To tilt the keyboard, pull out the
keyboard legs. The legs snap into position. To decrease the tilt of the keyboard,
rotate the keyboard legs until they snap into the bottom of the keyboard case.
The keyboard cable plugs into the keyboard connector at the rear of the I/O drawer.
12 RS/6000 Enterprise Server Model H80 Series User's Guide