Specification:1. Brand: E-Blue (E-3lue)2. Model: K7533. Version: Mixed light Version4. Connection: USB Wired5. Keys amount: 104 Key6. Switch: Black Switch / Blue Switch7. Keys life: 500000 Clicking life8. Voltage: 5V ± 5% 9. Cable Length: 1.6m10. Dimension: 439 * 134 * 37mmFeatures:1. Support 10 backlit displaying modes, cool and dazzling, enhance the gaming atmosphere.    Press FN+INS to change the backlit displaying modes.    Press FN+↑/↓ to adjust the brightness, press FN+←/→ to adjust the backlit displaying speed.2. Blue switch and black switch for your choice, and you could change the switch by yoursellf.3. Supports NKRO, full keys clicking without conflict.4. Alloy wire drawing panel with suspended keys design, durable and stylish.5. Support multimedia function keys.6. There are 3 direction for the usb cable to be placed, and there is one keycap puller slot, more convenient for your use.Package Included:1 * E-Blue K753 Mixed Backlit 104 Key USB Wired NKRO Mechanical Gaming Keyboard Black Blue Switch