SPECIFICATIONS: > USB Multimedia Keyboard > 12 multimedia hotkeys Fn+(F1 to F12) > Laser inscribed keycaps, long life > Injection rubber > Spill Resistance HARDWARE DIFFERENCE: > OD 3.2 full copper cable(cheap is OD 2.6, 2.8) > 94VO PCB board > Silver membrane with pasted injection rubber (cheap is carbon and normal rubber, normal rubber type feeling not good.) > Laser inscribed keycaps (Normal is silk printing, this part material much more difference.)