ZKTeco’s C3 Plus series is an IP-based controller offering RFID cards and dynamic QR code authentication
for access control solutions.
The C3 Plus series includes three models: C3-100 Plus, C3-200 Plus, and C3-400 Plus. This series is designed
for small—to medium-sized enterprises and can handle up to 100,000 multi-tech card users and 100,000
dynamic QR code transactions.
The C3 Plus series has RS-485 interfaces, which ZKTeco’s RS-485 protocols and OSDP (Ver 2.1.7) for
accessing card readers. It is also compatible with ZKTeco’s QR code reader, including QR50, QR500, and
QR600. C3 Plus series is highly versatile, with the Wiegand interface (Wiegand format: W26/W34/W66) for
seamless integration with third-party access control readers.
The C3 Plus Series levels up data storage encryption by AES 256-bit algorithm. Also, C3 Plus Series
adopts the AES 128-bit algorithm encryption to ensure the communication between controller, readers and
I/O expansion boards secure. Also, the C3 Plus Series support HTTPS / TLS1.2 protects communications
between the server and the web client.