| Specifications:Membrane key switch with tactile feedback Unique mute design,stylish configuration Key switch life>20,000,000times With three ACPI power management keys: Wake up, Sleep, Power Rigid metal plate structure (option) Compatibility: fully comply with PC AT PS/2 and Microsoft Windows OS Connector: 6 Pin Mini Din PS/2 type, USB type EMI: FCC Class B, CE | 
