Appearance design : Game style design Keyboard features : 7 color LED,suspended the keyboard Keyboard size : 438*135*33 mm Key number : 104 keyboard length : 1.6 M keyboard weight : 666 g Key life : 10 million times Interface : USB keyboard color : White/Black Nstalation : Plug and play without the need to instal any software System requirements : Windows2000.XP(PS2-SP3). Vista. Windows7.Windows8/ mac os x Material : ABS material Working voltage : DC5V(50MA