、[109 Keys]: The USB wired keyboard has 109 keys, which is standard and practical, very comfortable to touch, especially suitable for business and home. 2、[Left-Handed Design]: The 109-key keyboard has a left-handed design, and the numeric keypad area is on the left side, which is convenient for left-handed people to use and can meet your different needs. 3、[Built-in 2 HUB]: The left keyboard has HUB hub, easy to transfer files and expand equipment, very suitable for business offices, software designers and engineers. 4、[Scissor Button Design]: The left business keyboard adopts a scissor key design, the key is responsive and smooth, giving you a comfortable typing experience and relieving hand fatigue. 5、[Plug and Play]: The USB wired keyboard is easy to operate, just plug the keyboard into the USB port and you're ready to go, compatible with Windows XP, 7, 8, and 10 systems.