Kindly Morrow
RFID and NFC Card Copier and Writer
Clone, read, and write RFID and NFC cards across common frequencies without a computer attached. Supports both 125kHz EM4100/HID proximity cards and 13.56MHz Mifare Classic, NTAG, and compatible IC cards from a single handheld device. Grab one for your bench if you're prototyping access control systems, auditing physical security, or building custom badge workflows.
Project idea: Build a workshop access log by pairing this writer with a stack of writable T5577 keyfobs and an ESP32-based reader at your door. Each fob gets a unique ID written with this device, and the ESP32 logs entry timestamps to a local Home Assistant instance via MQTT.
Key Features
- Reads and writes both 125kHz (EM4100, HID) and 13.56MHz (Mifare Classic 1K/4K, NTAG213/215/216) card formats
- Standalone operation, no PC or software required for basic copy operations
- Onboard display shows card UID, card type, and read/write status in real time
- Supports writable T5577 and compatible blank fob/card targets for cloning
- USB-C or micro-USB charging (verify against unit received) for field portability
- Copy operation typically completes in under 5 seconds per card
- Ships from US warehouse, 12,000+ units in stock for fast fulfillment
Frequently Asked Questions
Can this clone encrypted Mifare Classic cards?
It can clone Mifare Classic cards that use default or known keys. Cards with custom sector encryption will require a separate tool (like a Proxmark) to extract keys first. Standard EM4100 and unencrypted Mifare Classic copies work reliably out of the box.
What writable blank cards work with this?
T5577 fobs and cards for the 125kHz side, and CUID or UID-writable Mifare Classic blanks for 13.56MHz. Standard NTAG stickers are writable for NFC data but cannot have their UID changed. Check the card packaging before buying blanks.
Is this useful for Home Assistant or ESPHome projects?
Yes, as a provisioning tool. Use it to pre-write consistent UIDs onto your fobs, then register those UIDs in your ESPHome or HA-based reader config. It saves time compared to reading unknown UIDs off each card individually during setup.


