ZkTeco Proximity Card USB Reader
CR20-M
The ZKTeco CR20-M is a USB-powered desktop card reader used for enrolling 13.56 MHz Mifare proximity cards into access control or time attendance systems. It functions as a keyboard emulator, simplifying card management by automatically inputting the card's serial number into applications.
Key features
- 13.56 MHz frequency: The CR20-M is designed specifically for Mifare cards and other 13.56 MHz credentials.
- USB connectivity: It connects to a PC via a "plug-and-play" USB port and is powered by the USB cable.
- Keyboard emulation: The device emulates a keyboard to input the Mifare card's unique serial number directly into any cursor position.
- User feedback: It provides visual and audible confirmation with dual-color LED indicators (red and green) and an integrated beeper.
- Durable design: The reader is built with industrial-class ABS plastic and has a textured finish for durability.
- Broad compatibility: It is compatible with various operating systems, including different versions of Windows, Android, and Linux.
CR20 Series variants
The CR20-M is part of a series of USB readers from ZKTeco, with similar features but different functions and supported frequencies.
| Model | Operating frequency | Function |
|---|---|---|
| CR20-E | 125 KHz | Reads EM (proximity) cards. |
| CR20-M | 13.56 MHz | Reads Mifare (proximity) cards. |
| CR20-M/W | 13.56 MHz | Reads and writes Mifare cards and offers a communication protocol for developers. |
Common applications
- Access control: Enrolling new users by registering their proximity cards into an access control database.
- Time and attendance: Quickly adding new employee credentials into a time and attendance tracking system.
- Software integration: For developers, the keyboard emulation functionality allows for integration with custom software without requiring a dedicated software development kit.