Key-by-key LED Backlit: Red LED can adjust lighting and backlight effect, the double-shot injection molded keycaps make the backlighting crystal clear. Material: Aluminum and ABS construction, plate-mounted mechanical keys, and gold plated USB connector for hardcore gaming. Easy to Operate: USB plug and play, no driver needed. Pressing by 19 keys together, no conflict, no slow, make game more fast. Design: 104 standard conflict free keys, full numeric keypad,12 multimedia keys, and splash-proof design. Compatibility: Suitable for Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP or later operating system.