Description: RGB Backlight: Bright and evenly distributed backlit keys make it easy to find the exact key when working in a dimly lit room. Wired Keypad: USB Connection, plug and play, no driver required, easy to use, mini keyboard helps to enter numbers more conveniently and finish work faster. 21 Key Mechanical Numeric Keypad: The 21 key mechanical numeric keypad provides quick triggers, tactile feedback and audible clicks. Great for typing, programming and playing games. Comfortable: The stepped keycap and angled design increase comfort, ideal for those working with spreadsheets, accounting documents or financial applications. Application: USB Number pad are suitable for home, office, school, business trip, accounting firm, internet cafe and other places where you need to use laptop, desktop, PC. Specification: Material: PP Power: USB2.0 Keys: 21 Keys Connecting method: wired Keyboard type: high keycap ladder design Interface: USB C Size Chart: Number Pad: 13.34cmx8.76cmx4.16cm/5.25inchx3.45inchx1.64inch Cable Length: 150cm/59.06inch Package Includes: 1 Piece Number Pad 1 Piece Cable 1 Piece Keycap Puller Note: Please allow slightly errors due to manual measurement and different monitors. computer laptop financial accounting keyboard usb wired mechanical numeric keypad keyboard wired desktop pc notebook keypad plug and play