| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
Specifications:
| Interface | USB 2.0 |
| Support OS | Windows 98/2000/ME/XP 32bit Vista/Win7 32/64bit |
| Switch life | 10 million times |
| Travel distance | 3.5+/-0.5mm |
| Travel to peak | 1.0+/-0.05mm |
| Weight | 1300g |
| Operating humidity | 10% to 90 % |
| Dimension | 490(L)* 263(W)*32.8(H) mm |
| Certification | CE, FCC, BSMI, KCC |
| Color | Black, Yellow(USI Layout only), Red(USI Layout only) |
| Peak force | 50gr, 60gr, 70gr +/- 10% |
| Operating temperature | -5oC to 40oC |