PRODUCT NAME : Backlit Floating-keys Multimedia Gaming Keyboard NUMBER OF KEYS : 104 keys WORKING VOLTAGE: DC 4.2-5.5V SWITCH : Floating Switch 45g Trigger Pressure POLLING RATE : 1000Hz Ultrapolling Rate KEYSTROKE : 8 Million Keystroke Lifetime GHOSTING : 25 Keys Anti-ghosting CABLE : Nylon Copper Cable colour:black Material:ABS CABLE LENGTH : 155cm SIZE: 433(W) x 130(L) x 40(H) Package Contents: 1 * wired keyboard Operating systems: Windows XP/7/8/10; MAC OS One free USB 2.0/3.0 port interface RGB keyboard, no need to install any driver for your first use. Keys Function Map