1. 18-Key Layout: The Mini Numeric Keypad features 18 full-size keys, perfect for PCs, computers, or laptops lacking a built-in number pad, enhancing data entry efficiency. 2. Broad Compatibility: This Number Keypad is compatible for XP/Vista/7/8/10 and for MacOS 10.4 and above. Note: Function keys are not compatible for MacOS, but numeric keys work seamlessly. 3. Ultra-Slim Design: The Digital Keyboard boasts an ultra-thin, compact design that saves space, making it ideal for both home and office setups. 4. Equipped with 3 USB 2. 0 Ports: The Numpad includes three USB 2.0 ports, providing additional connectivity options once plugged in, allowing for quick and comfortable data input. 5. Plug-and-Play Convenience: The Accounting Number Pad offers easy setup-simply plug it into an available USB-A port on your computer or laptop. No drivers or additional software needed. Specification: Type: Wired Application: Number Language: English Switches Hot swap: YES Number of keys: 18 keys Connection method with computer: Wired Interfaces provided by the device: 3 USB 2.0 ports Transmission rate: USB 2.0 480Mbps Applicable models: Universal Hot plug: Supported Color: Black Material: ABS Package Contents: 1*Numeric Keypad Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.