Ergonomic Keyboard Left Hand Keyboard Left Handed Keyboard Ergonomic Design Full-size Keyboard Dual USB Interface Improve Work Efficiency Suitable for software designers, engineers, banks, offices, finance, stocks, and markets with demand. It has dual USB HUB functions and a USB interface, which can connect more devices and is more convenient to use. The left-hand keyboard adopts an ergonomic design, effectively relieving right-hand fatigue, reducing the work of right-hand fingers, and improving computer operation efficiency. The full-size left-hand keyboard includes all common key positions, adapting to various input needs. When using the left-hand keyboard to input numbers, it can solve the problem of frequent switching between the keyboard and the with the right hand, and the work efficiency is increased by more than 20%. Specification: Product Size: 463*137*23mm Package weight: 635g Cable length:1.45M Package Size: 550*167*50mm Color: Black Product weight: 475g Material: ABS Key : More than 10 million times Interface: 2*USB socket Number of keys: 109 keys Package list: 1* Left-hand keyboards