Description:Ϝ/89 keys keyboard with embedded numeric keypad and 12 dedicated function keys Full function of 104/105 key enhanced layout & Built-in touch pad for pointing input device.Features: Designed for Windows 88/89 keys keyboard with embedded numeric keypad and 12 dedicated function keys Full functions of 104/105 key enhanced layout Built-in touch pad for pointing input device Glide your finger to move cursor No contact force required Use the buttons like mouse buttons 2 programmable buttons Tracking speed up to 40 inches per second Elegant wrist pad for comfortable support and restTechnical Information: Compatibility: USB Key layout: 88/89 keys Travel distance: 3.0 0.3mm Travel to peak: 1.0 0.2mm Peak force: 50 10 gm Operating temperature: 0 to 55oC Storage temperature: -20 to 65oC Operating humidity: 10% to 95% RH Switch life: 5 million life cycles Electronic data: +5VDC 5% 100mA Dimension (without palm rest): 287(L)x140(W)x29(H) Weight: 0.45kg