1Built-in touchpad allows you to type through touching to make operation more convenient. 284 keys give full functions. 3Scissors foot designed keys help save labor. Gives a comfortable typing. 4Widely suitable for Dos/Windows95/98/NT/ME/2000/2003/XP/Win7/ Win8, Linux, Unix, Mac OSX. 5Long cable up to 1.5m.This wired keyboard with touchpad comes with 84 keys and a touchpad to make typing more convenient and smoother. Scissors foot designed keys rebound quickly, which helps save labor and gives a comfortable typing. Furthermore, it is suitable for Dos/Windows95/98/NT/ME/2000/ 2003/XP/Win7/Win8, Linux, Unix, Mac OSX. Features: Built-in touchpad allows you to type through touching to make operation more convenient.84 keys give full functions.Scissors foot designed keys help save labor. Gives a comfortable typing.Widely suitable for Dos/Windows95/98/NT/ME/2000/2003/XP/Win/ Win8, Linux, Unix, Mac OSX.Long cable up to 1.5m. Specification: Product type: Wired Keyboard with Touchpad Material: ABS Key: 84 keys Key design: Scissors foot design Key travel: 2.0mm Cable length: 1.5m Key service life: 2 million times Working current:Working voltage: DC4.5-5.5V Package size: approx. 30.4 * 26 * 3.5 cm/ 12.0 * 10.2 * 1.4 in Package weight: 690g/ 24.3oz Package List: 1 * Wired Keyboard with Touchpad