Computer Accessory Sets features: HXSJ A878 USB 104 Keys Three-colors Crack Backlight Wired Keyboard, Length: 1.75m, English Version Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Feature: 1. Crack backlit design, cool and full of personality. 2. Adjustable backlight 3 colors and 3 levels of adjustable brightness, more choices, more flexible. 3. Large key, curved cap, perfect for fingers. 4. The anti-slip patch provides a powerful adsorption capacity to effectively avoid moving while playing games. 5. Heavy-duty and ergonomic design, all bring a joyful gaming experience to players. Product specifications: 1. Backlight color: red, purple, blue. 2. Key life: less than or equal to 100,000 times. 3. Working current: less than or equal to 350mA. 4. Working voltage: DC 5V +/- 0.5V. 5. Support system: Applicable to Win7 / 8 / Vista / XP / 2000, for OSX 10.2. 6. Material: ABS. 7. Keyboard size: 47.5x19.5x2.5cm. 8. Keyboard weight: 626g.