Blue mechanical switches provide speed, accuracy, and endurance Slim and lightweight design complete the stylish appearance of MSI Mechanical Gaming Keyboard GK50Z The ergonomic high-low keycap design reduces strain and pain of hands and wrists Stunning per-key RGB lighting and various effects Steady Gaming Base provides incredible feedback and anti-slip performance Specifications NORMAL KEYS 104 KEYSTROKE LIFE 50+ Million Lock Winkey/Full Keys Anti-Ghosting SWITCHES Blue Switches OS SUPPORTED Windows 7 and later CABLE 1.8m PVC KEYBOARD INTERFACE USB 2.0 MATERIAL OF KEYCAP TPU+ABS WEIGHT(G) 840g DIMENSIONS(MM) 445 *133*38mm Package Size 500*150*100cm Package Weight 900g Note Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. There is a little of difference according to manual measurement. Package List 1*MSI Mechanical Gaming Keyboard GK50Z(Blue Switches)