Feature:
Designed for Windows 98, 2000, ME, XP.
88/89 keys keyboard with embedded numeric keypad and 12 dedicated function keys.
Full functions of 104/105 key enhanced layout.
Bulit-in touch pad for pointing input device.
Glide your finger to move cursor.
No contact force required.
Use the buttons like mouse buttons
Tracking speed up to 40 inches per second.
Elegant wrist pad for comfortables support and rest.

Specification:
Interface: PS2 (or USB interface)
Travel distance: 3.0 +/- 0.3mm
Travel to peak: 1.0 +/- 0.2mm
Peak force: 50 +/- 10gm
Operating temperature: 0 to 55 degree C
Storage temperature: -20 to 65 degree C
Operating humidity: 10% to 95% RH
Switch life: 5 million life cycles
Electronic data: +5VDC +/- 5% 100mA

Dimension
(without palm rest): 289(L)x226.6(W)x27(H)mm;
Weight: 0.72kg