Sleek-style design perfect for iMacs and MacBooks Adds a number pad to your existing keyboard and three USB 2.0 ports to your PC or laptop for quick and comfortable data entry Easy to set up, plug-and-play, hot swappable Ultra-thin and compact; no driver required Compatible with macOS 10.4 and above, Windows XP, Vista, 7, 8, and 10 Home, End, Insert, Delete, Page Up, and Page Down buttons work with Windows 7, 8, 10 and macOS Applicable models: universal Type: Numeric keypad Number of keys: 18 Connection: Wired Color: 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 to be slightly different from the real thing. Measurement may vary by +/- 1-3 cm