Features: The keyboard panel is made of frosted aluminum alloy metal, which is durable and fashionable. The keycap prevent the letters from wearing out and maintain good light transmission. The keyboard has been set with more than 20 lighting effects, such as breathing, wave, Z shape, etc., which can be switched by pressing the knob on the upper right of the keyboard. Mechanical switches have been tested by professionals and can meet various needs. The trigger is optimized to execute commands faster and has excellent durability. Can adapt to PC, desktop, notebook, computer. Plug and for play, no drivers or software are required. Supported computer systems include for Windows 10, for Windows 8, for Windows 7, for Mac OS X, for Windows XP, for Windows. The keyboard design is ergonomic, and the professional and compact gaming keyboard is very suitable for comfortable typing and helps reduce hand fatigue during long-term gaming, Specifications: Transfer method:USB for Key number:104 for Key route:4.0mm for Key force:about 60g for Key life:50 million times Rated voltage/currency:DC 5V/<250mA Size of keyboard:49x16.5x5.5cm/19.29x6.50x2.17in System Required:VISTA / WIN7,8,10 / for MAC OS Package Color:black white Package Includes: 1PC x Wired mechanical gaming keyboard note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!