insulation resistantnce: 100M OHM at 100VDC / Contact bounce :5ms max/Operation voltage:+5VDC -10%/ Operation current :250mA max at + 5VCD

IBM PC AT/PS2/USB compatible/ multi language version available/ fully compatible with windows 98/2K/ME/XP / static resistant magnetic/ field disturb resistant/ silent switch design/ feeling more comfortable