PLUG & PLAY: Simply plug the USB keypad into a USB port and begin crunching numbers instantly. No drivers or extra software required. Compatible with any computer with a USB Port, suitable for laptops and desktop computers with for 2000, for for Vista, for 7, for 8, for 10 or for Linux operating systems. COMFORTABLE TO USE: With 23 full-size keys, easy to identify, suitable for data entry and improve accuracy. The number keypad for laptop is easy and comfortable to use, Membrane key switches can reduce typing noise(enhanced with scissor switches and quiet keycaps), improve response. It is the ADD ON accessory for those who use laptops. ERGONOMIC DESIGN: 23 Keys Full-Sized Numeric Keypad is designed to fit the average hand and prevent wrist strain with a tilted slope. The number pad contains backspace key, one key home key, tab key, e mail key, one key calculator key and number lock, this digit keypad is the bookkeepers working on Excel, teachers entering grades, or office workers for data entry. SLIM & COMPACT: The ultra-slim 23 keys number keyboard is sleek and compact, the classic black numeric keypads are for household, School, business trips, or daily use, Provide you with more comfortable and convenient number use. Scope of Application: suitable for laptops and desktop computers with for 2000, for for Vista, for 7, for 8, for 10 or for Linux operating systems How to Use:
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Specification:
Item Type: Number Pad
Material: ABS
Installation Method: Plug and Play Without Driver
Product Name: Multifunctional Numeric Keyboard
Wire Length: Approx. 1.5meters/1.6yd
Number of Keys: Multifunction 23 Keys
Connection Method: USB2.0 Wired Connection
Life: 20 Million Times
System Requirements: For for 7, for 8, for 10

Package List:
1 x Number Pad 
1 x User Manual