**- Number of Keys: 87 keys including 12 function keys
**- Key Lifespan:>10 millions actuations
**- Seal Protection level: IP68
**- Interface: USB or PS/2 or USB+PS/2
**- Layout: US English or customization
**- Compatibility: Microsoft® Windows 7/Vista®/XP/2000/ME/98/ Linux
- Operating Temperature:-20℃~+65℃
- Dimensions: 272(L) x 135(W) x 11.5(T) mm
- Color: Custom color available