USB RFID Card Reader 125kHz – EM4100 / EM4102 / TK4100

The 125kHz USB RFID Card Reader is a plug-and-play contactless card reader designed to read compatible RFID card identification numbers and transfer them directly to a computer.

Featuring USB connectivity and keyboard emulation, the reader automatically enters the RFID card number into the active text field, eliminating the need for manual data entry or specialized software for basic operation.

Compatible with EM4100, EM4102, and TK4100 RFID cards, this reader is suitable for identification systems, attendance tracking, membership management, inventory applications, and electronic access management.

Key Features

• 125kHz RFID Technology: Reads compatible low-frequency RFID cards and tags.
• USB Plug & Play: Connects directly to a computer through a USB port.
• Keyboard Emulation: Automatically enters the card identification number as keyboard input.
• Driverless Operation: No additional driver installation is normally required for standard USB HID operation.
• Supported RFID Chips: EM4100, EM4102, and TK4100.
• Fast Card Recognition: Reads compatible cards when presented near the reader.
• LED Indicator: Provides visual feedback during operation.
• Built-in Buzzer: Audible confirmation when a card is detected.
• Compact Design: Suitable for desktop and workstation installations.

Technical Specifications

How to Use

1. Connect the RFID reader to an available USB port on your computer.
2. Allow the computer to recognize the USB input device.
3. Open a text editor, spreadsheet, or application that accepts keyboard input.
4. Position the cursor in the desired text field.
5. Place a compatible 125kHz RFID card or tag near the reader.
6. The reader detects the card and automatically enters its identification number.
7. The LED indicator and buzzer provide feedback when the card is successfully read.

Applications

• Employee Attendance Systems
• RFID Identification Projects
• Membership and Loyalty Systems
• Student Identification
• Inventory and Asset Tracking
• Visitor Registration
• Library Management Systems
• Access Management Applications
• RFID Software Development and Testing

Important Notes

• Supports compatible 125kHz RFID cards, including EM4100, EM4102, and TK4100.
• Not compatible with 13.56MHz RFID cards such as MIFARE Classic, NTAG, or NFC tags.
• Not all 125kHz RFID chips are supported.
• This reader is intended for reading card identification numbers, not writing or programming RFID cards.
• The reader operates as a USB keyboard input device and is not a standalone door access controller.
• Software compatibility depends on the operating system and application used.

Package Includes

• 1 × 125kHz USB RFID Card Reader with USB Cable