Ergonomic shape and detachable design The distance between the left and right typing area can be adjusted according to typing habits and shoulder width. Colorful backlit mechanical key shaft provides extremely fast response and key feedback, as well as RGB backlight effects USB-C separate main cable and connecting cable, flexible and easy to disassemble USB port is included for easy connection of USB devices backlight colors and special effects can be set with the software UP to 16.8 Million color adjustments. Specifications: Product model: C959M Interface: USB Number of keys: 89 keys Switch form: Kailh® Box mechanical brown switch Key stroke: 4.0 ± 0.5mm The whole area anti-ghost key design (NKRO) 1 USB 2.0 port Voltage / current: DC 5V / 650 mA Max. Product weight: about 5.63 lbs USB-C main line length: 6 feet USB-C cable length: 9 Product size: 9.9 (L) X 16.1 (W) X 2.1 (H) inches Tactile switching characteristics 55 cN operating force