T-WOLF T50 97-keys RGB Luminous Color-Matching Game Mechanical Keyboard with Knob Features: 1. High-quality ABS material keycaps, comfortable to touch and delicate in hand 2. Circular volumelight adjustment knob design, rotate to adjust the multimedia volume, press the knob to adjust the lighting mode 3. Adopt vertical column partition colorful backlight layout, cool and unique 4. Support up to 12 adjustable dynamic marquee effects, support dynamic frequency and light brightness adjustment 5. 25-key conflict-free design provides fast and smooth feedback experience for efficient office work and competitive gaming. Product parameters: 1. Material: ABS 2. Compatible systems: WinXP, Vista, Win7, Win8, Win10 3. Backlight effect: RGB mixed color lighting 4. Keyboard layout: 96+1 keys 5. Number of anti-collision keys: 25 keys without collision 6. Working voltage: 5V 7. Working current: less than 200mA 8. Connection method: USB 9. Whether there is a hand rest: yes 10. Waterproof function: supports waterproof 11. Button technology: mechanical axis 12. Shaft type: green shaft 13. Cable length: 1.5 meters 14. Product size: 385 x 136 x 35.5mm 15. Product weight: 720 grams