198I K21 Wired Mechanical Dightal Keyboard Multifunction Button RGB Backlight Office Keypad 1. Material: ABS 2. Number of keys: 21 keys 3. Key technology: X-architecture 4. Connection: USB wired connection 5. Cable length: about 1.8 m 6. Weight: about 185 g 7. Size: about 13.5 x 9 x 3.5 cm Features: 1. Digital keypad, slim and portable, multimedia keys, splash-proof, left and right hand use 2. Wired connection, plug and play, waterproof function 3. Support ergonomic design, fast, improve work efficiency 4. Scissor foot structure, light and comfortable hand feeling, fast response time. 5. Colorful RGB lighting effects, free to switch, light and shadow flow, the tide of extraordinary 6. Keyboard characters UV coating printing, clear handwriting, not easy to wear out 7. Anti-slip silicone feet, stable but not floating intimate and good use, reduce the chance of pressing wrong 8. Applicable to a variety of office occasions, to meet the corporate finance, banks, social security fund centers, business halls, supermarkets and other occasions of office needs