ZKTeco ZK4500 biometric fingerprint sensor and time attendance device has ZK fingerprint reader optical sensor. The device can capture fingerprint images and upload them to a computer via the USB interface. It is compatible with Windows 2000 / XP / 2003 / Vista / 7 and Linux. The hardware can be integrated into the developer's system. This product is widely used in fields such as social insurance, public security, time attendance, fingerprint encryption, embedded systems, and others. 500 dpi/ 256 gray resolution, 15 x 18mm sensing area, 280 x 360 pixel image size and USB 1.0/ 2.0.