1.Sleek -style design perfect For iMacs MacBooks 2.Ads a number pad to your existing keyboard and three usb 2.0 ports to your PC/ Laptop for quick and comfortable data entry 3.Easy to set up, Plug & Play, Hot swappable 4.Ultra-thin and compact; No Driver required 5.Compatible with: for OSX 10.4 and up; for XP, for Vista, 7, 8, 10 "↑ ← ↓ →", Home, End, Ins, Del, PgUp and PgDn buttons work with for /7/8/10,with for OSX Applicable models: universal Type: Numeric keypad Number of keys: 18 (keys) Connection with computer: wired Colour:Silver Material:Aluminum Alloy Package Contents: 1 x Wired numeric keyboard 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.