The CHERRY KC 4500 ERGO's ergonomic design supports good posture during the workday. The curved keyboard is adapted to the natural movement of the hands and fingers for fatigue-free typing. The extra-soft palm rest with memory foam prevents pressure points and lets you rest your hands comfortably. Other highlights: - Non-slip rubber feet - Extra long USB cable for improved flexibility - Minimal learning curve - Practical multimedia keys System requirements: USB port, Windows 7, 8 or 10