General configurations: √ 2.8′′ tft colorful lcd screen √ face capacity: 200 √ fingerprint capacity: 400 √ log capacity: 50,000 √ communication: usb host, tcp/ip √ standard functions: dst, self service query, t9 input, schedule bell, ssr report, simple access control zk3969 is a typical face and fingerprint time attendance device, with high performance/price rate. if you are looking for a tcp/ip face time attendance, zk3969 is strongly recommended description: zk3969(mb20) is a multi-biometric time attendance and access control device that supports up to 400 fingerprint and 200 face capacity. with the latest hardware platform, zkface and zkfinger algorithm, it offers brand new ui and user-friendly operation interface to provide good user experience. this device is suitable for smb enterprises, hotels, hospitals, features: ◆fingerprint recogniton ◆face recognition ◆2.8′′ tft screen ◆self-service report ◆time attendance and access control function ◆usb download, tcp/ip communication