Description The Ultimate Magic Card Gen 4 is a configurable RFID research card intended for authorised NFC and access-control testing in lab and assessment environments. It is designed for professionals who need a flexible card-format platform for tag emulation, compatibility checks, and controlled credential behaviour testing across common 13.56 MHz workflows. This type of card is commonly used during access-control research, reader validation, and protocol experimentation where a portable and reconfigurable test tag is preferable to disposable single-purpose media. Product Specification Table Operating Band 13.56 MHz Use Case RFID / NFC research and tag emulation Compatibility Flipper Zero, Proxmark/iCopy-class tools. Compatible Card types MIFARE Mini MIFARE 1k S50 4 byte UID MIFARE 1k S50 7 byte UID MIFARE 1k S50 10 byte UID MIFARE 4k S70 4 byte UID MIFARE 4k S70 7 byte UID MIFARE 4k S70 10 byte UID Ultralight Ultralight-C Ultralight Ev1 NTAG Card Configuration parameters Preset Card Type UID UID Length (4-byte / 7-byte / 10-byte) SAK (1 byte) ATQA (2 bytes) ATS (Custom length / Disable) Disclaimer Hackitsune hardware is designed for professional security research, development, and authorised testing purposes only. Users are responsible for ensuring compliance with all applicable laws and regulations in their jurisdiction. Always obtain proper authorisation before interacting with systems, networks, or devices you do not own.Hackitsune accepts no liability for misuse of this product. Use responsibly. 🦊