1>.Both hands 2>.800DPI resolution 3>.3 key-Press 4>.Interface:PS/2,USB,U+P Windows 98/2000/XP/7,NT4.0, Me, Linux 1>.Both hands2>.800DPI resolution3>.3 key-Press4>.Interface:PS/2,USB,U+P Windows 98/2000/XP/7,NT4.0, Me, Linux5>.OS:DOS,WIN95/98/2000/ME/XP/NT6>.Voltage:DC5±5%7>.3D key-press Operating Force: 170±30GF