Nanopoint KB-ACK-3700C Compact keyboard. Device interface: USB+PS/2, Keyboard layout: QWERTZ. Keyboard dimensions (WxDxH): 310 x 25 x 157 mm, Keyboard weight: 0.45 kg. Compatible operating systems: Win95/98, 2000, ME, NT, XP, Gross weight packaging: 600 kg, Packaging height: 400 mm