How to Use: Plug and play Specification: Item Type: Mechanical Keyboard Key Technology: Mechanical Axis, Green Axis Connection Method: Wired Keycap Type: Square Keycap Keyboard Layout: 87 Keys Working Voltage: 4.5V~5.5V Working Current: 380mA Frequency: 48Mhz N-Key Rollover: Support Package List: 1 x Mechanical Keyboard 1 x Date Cable 1 x Buttons 1 x User ManualCompatible Objects: Extensive compatibility, supporting computer systems such as for 10 / 8 / 7 / OS X / XP / VISTA. Long Lasting: Adopts a double injection molding process to ensure that the characters will never fade and are durable. The RGB backlight mode is dreamlike and adds unlimited fun to the game. 87 Keys Layout: 87 keys layout design, independent research and development of special personalized large fonts, high and low floating keycaps conform to ergonomic arc curve. Backlight Mode: Dynamic RGB backlight, 10 backlight modes, you can type in the dark, you can use FN + up/down to adjust the brightness, the keys in any non-breathing mode. Mechanical Structure: Adopting N-Key Rollover technology to achieve full key without impact, With its complete mechanical structure, it will bring you into the battle at full speed.