2. Model: M639 Crack Pattern Version
3. Color: Black / White
10. Rate of Return: 125/250/500/1000Hz
11. Acceleration: 20G
12. IPS: 60ips
14. Backlit: Red / Blue / Green / Purple / Orange
15. Cable Length: Approx. 1.8m
1. 5 files dpi and 4 files return rate for option, suits for your different gaming need.
2. Built in Avago A3050 optical engine, and the refresh rate is up to 6500fps, quick response and precise positioning.
3. Special surface design with crack pattern, good light-admitting quality, smart and fashionable.
4. Support macro setting.
Driver link: https://drive.google.com/open?id=0BxloeYV0fXn9dWo5NElLOXNjZ1U
1 X E-Blue M639 4000DPI 6 Buttons USB Wired Backlit Optical Gaming Mouse Crack Pattern Version