Coolermaster QuickFire Ultimate

SPECIFICATIONS
Model Number SGK-4011-GKCM1 (Brown switch/Red backlight) 
SGK-4011-GKCM2 (Brown switch/white backlight) 
SGK-4011-GKCL1 (Blue switch/Red backlight) 
SGK-4011-GKCL2 (Blue switch/Blue backlight)
Key Switch Cherry MX Blue/ Brown/ Red
Keycaps ABS, grip coated, removable
Keycap Puller Yes, ring-puller
Backlight All keys, Red, 5 Levels, 3 Modes
Key Rollover NKRO (windows only)
Polling Rate 1000 Hz /1 ms
Interface USB 2.0 full speed
USB cable 1.8m, braided, gold plated, removable
Dimensions 454(L)*155(W)*31(H) mm
17.9(L)*6.1(W)*1.2(H) inch
Weight 1380 g / 3.04 lbs