Number of keys: 104 keysAll keys without punch and 6 keys without punchRated voltage: DC 5VTransmission method: wired USBProduct weight: 1.05KGProduct size: 436*130*37 soil 0.5MMRated current: 200MAProduct wire 1.8MSystem support: WINDOWS7/WINDOWS8/WINDOWS10Packing list:1 * Gaming keyboard1 * Wrist restFull RGB backlighting：you can program all of the keys to be the same color/what color you want with no driver needed.Ergonomic designed: the stepped keycap makes it sleek and the arc and slope fit your hands easily to prevent fatigue.Metal and ABS construction, Gold plated USB connector stand up to hardcore gaming.Metal base, high quality ABS material,non slip design, splash proof and durable. The rubber holder makes the keyboard with two levels of adjustable height.Wired Modes, Working and typing or gaming and entertaining with wired mode.Colorful backlight, support 14 kinds of lighting effect modes switch.