Logitech Media Keyboard BE 105keys PS2, IBM-compatible PC Windows 98, Windows ME, Windows 2000, or Windows XP 1 PS/2 port CD-ROM drive , 20.9 x 10 x 2.17" (530 x 254 x 55 mm), 3.75 lbs (1.7 kg), Windows 98, Windows ME, Windows 2000, or Windows XP, Internet browsing, multimedia, applications launch, programmable, 1 x keyboard - generic - 6 pin mini-DIN (PS/2 style) Logitech Media Keyboard BE 105keys PS2. Keyboard number of keys: 105