USB 125KHz RFID Card Reader EM4100 TK4100 – No Driver
USB 125KHz RFID Card Reader EM4100 TK4100 – No Driver
LUCKING DOOR USB 125KHz RFID Smart Card Reader (EM4100 / TK4100)
Upgrade your access control setup with this compact, plug-and-play USB RFID card reader from LUCKING DOOR. Compatible with all standard 125KHz EM4100 and TK4100 cards and tags, this driverless reader connects instantly to any Windows PC via USB — no software installation needed. Whether you're managing office entry, hotel door locks, utility meters, or ID card systems, this reader delivers fast, reliable performance in a sleek, waterproof hard-plastic housing.
Key Features
- Universal 125KHz Compatibility: Works with all EM4100 and TK4100 RFID cards and key fobs right out of the box.
- Plug & Play – No Driver Required: Instantly recognized by Windows 2000, XP, 7, 8, and 10 with zero setup.
- USB Powered: Draws power directly from your USB port — no external power supply or adapter needed.
- Built-In Status Indicators: Diagnostic power LED and audible buzzer confirm every successful card read.
- Compact & Waterproof Design: Durable hard-plastic construction stands up to everyday use in varied environments.
- Fast Communication: 106Kbit/s communication speed for near-instant card reads at up to 5–8 cm range.
- Flexible ID Output: Reads the first 10 decimal digits by default; last-8-digit decimal format available on request.
- Wide Operating Range: Functions reliably from -10°C to 70°C (-14°F to 158°F).
Technical Specifications
| Brand | LUCKING DOOR |
| Model | R20D |
| Frequency | 125 KHz |
| Supported Cards | EM4100, TK4100 (all 125KHz RFID cards & tags) |
| Interface | USB (Plug & Play, Driverless) |
| Communication Speed | 106 Kbit/s |
| Read Distance | 5–8 cm |
| Power Supply | DC 5V via USB (±5%) |
| Material | Hard Plastic (Waterproof) |
| Operating Temperature | -10°C to +70°C |
| Storage Temperature | -20°C to +80°C |
| Country of Origin | Made in China |
Common Applications
This RFID reader is widely used in access control entry systems, hotel door lock management, utility meter reading (water, electricity, gas), employee attendance systems, and general ID card management platforms.
For more information on RFID standards and security best practices, visit the National Institute of Standards and Technology (NIST) – Cybersecurity Resources.
Frequently Asked Questions
Q: Is this USB RFID reader compatible with Windows 10 and Windows 11?
A: Yes. The LUCKING DOOR R20D USB RFID reader is fully plug-and-play with Windows 2000, XP, 7, 8, and 10. No driver installation is required. Most Windows 11 systems also recognize it automatically via the same HID keyboard emulation protocol, though we recommend confirming with Windows 11 compatibility before purchase.
Q: What types of RFID cards work with this reader?
A: This reader supports all standard 125KHz passive RFID cards and key fobs using the EM4100 or TK4100 chip format. It will NOT read 13.56MHz cards (such as Mifare or HID iClass). Make sure your existing cards are 125KHz EM4100/TK4100 before ordering.
Q: How does the reader output the card number to my computer?
A: The reader emulates a USB keyboard (HID device). When a card is scanned, it automatically types the card's ID number — followed by an Enter keystroke — directly into whatever active text field or application is open on your screen. No special software is required.
Q: Can I use this reader on a Mac or Linux system?
A: The reader is primarily designed and tested for Windows. However, because it uses standard USB HID (keyboard emulation), many Mac and Linux users report successful use without drivers. Compatibility on non-Windows systems is not officially guaranteed by the manufacturer.