Ergonomic Design: This left-handed keyboard features an ergonomic key layout, effectively relieving right-hand fatigue and improving computer usage efficiency. 109 Keys: This left-handed keyboard has 109 keys. The left-side Numpad design allows your left hand to use the numeric keypad while your right hand is free for mouse operation. Micro USB: This office keyboard uses a Micro USB connection and is designed with an additional 2 USB interfaces for connecting other peripherals. Plug and Play: This left-handed Numpad keyboard is plug and play, requiring no drivers or complicated steps, making it more convenient to connect and use. Durable Material: This economic keyboard is made from premium ABS material, which is strong and highly durable, providing a stable and accurate typing experience.