US900R (S680)
The ZKTeco US900R (S680) is an RFID time attendance and access control terminal with a 3-inch touch screen, featuring fast card-based verification and intuitive user interface.
It supports RFID cards, PIN/password, and multi-verification modes with data backup capabilities via TCP/IP and USB connectivity.
Key Specifications
| Feature | Specification |
|---|---|
| Display | 3-inch Touch Screen |
| Card Capacity | 30,000 (RFID) |
| Transactions | 100,000 |
| Communication | TCP/IP, USB Host |
| Standard Functions | ID Verification, Work Code, DST, Scheduled Bell, Self-Service Query |
| Hardware | New firmware with core board platform |
| Access Interfaces | Electric Lock, Door Sensor, Exit Button, Alarm |
| Power Supply | 12V DC |
| Operating Temp | 0°C–45°C |
| Dimensions | Not specified |












