Biometric Attendance ZKTECO MB20 Product Information: ZKTECO MB20 Features and Benefits ZKTECO MB20 Features: ZKTECO MB20 Standalone Face fingerprint T&A System with Access Control, IN and OUT Employees, TCP/IP & USB designed especially for the purpose of popularizing the Face , fingerprint products. ZKTECO MB20 could store face and fingerprint templates and 50000 transaction records. ZKTECO MB20 is a High speed and reliable facial and fingerprint matching, it can match 1000 fingerprint templates within 2 seconds.