Ergonomic design, effectively relieve right hand fatigue, improve computer operation efficiencyFull-size 109-key left-handed keyboard, suitable for software designers, engineers, offices and other demand marketsDual USB HUB function and USB micro port for easy connection to other devices.Durable ABS material with over 10 million keystrokes for long-lasting durability.Plug and play, no need for tedious installation steps, convenient and fast Durable design This left-handed keyboard is made of durable ABS material and has a key life of over 10 million keystrokes, which makes it able to withstand long-time usage tests. It is equipped with dual USB HUB function and USB micro ports for users to easily connect other devices. Full-size 109-key design. The full-size 109-key design of this left-handed keyboard ensures that users can easily find all commonly used function keys and symbols during use. It is suitable for a wide range of market needs, including users in different fields such as software designers, engineers and offices. Ergonomic design This left-handed keyboard features an ergonomic design designed to effectively relieve right-hand fatigue caused by prolonged computer use. Its reasonable key layout and ergonomic curve design can reduce unnecessary twisting of wrists and fingers as well as alleviate the pressure on hands. Product Parameters Material: ABS Number of keys: 109 keys Interface: USB micro socket Key life: more than 10 million times Packing list Keyboard*1 Data cable*1