ZKTeco USA Fingerprint Enrollment Reader (SLK-20R)The new SLK 20R fingerprint reader combines an innovative optical design, a 2 megapixel image sensor, and an ARM9 processor to create the ultimate biometric peripheral. It has a superior ability to capture large, high quality fingerprint images and to reject spoof fingerprints in hardware. Extraction and matching may be performed by the on board CPU, or the fingerprint image or signed template may be transmitted via USB to a PC.