The Ultimate Magic Keyfob is multi-purpose emulation card, supporting customisable card type, card configuration and functionality mode. It is essentially a completely configurable emulation platform in card format. Configurable Card Types The Ultimate Magic Card contains presets of multiple 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 All ATQA/ATS/ATS values are freely configurable allowing for emulation of other or custom chipsets Configurable Parameters The card supports configuration of the following parameters: Preset Card Type UID UID Length (4-byte / 7-byte / 10-byte) SAK (1 byte) ATQA (2 bytes) ATS (Custom length / Disable) Configurable Functionality The card has several modes of operation, depending on your requirements Shadow Mode Shadow Mode, or "Write once then forget" mode, allows the card to be pre-configured with data. When next updated (ie, via a card reader / access control reader), modifications are temporarily maintained. The modified data can be read once, and then the card reverts to its pre-configured state. Shadow Mode is purpose built for in-the-field operations. Previously a card would have to be written, used, read and re-written manually; Shadow Mode takes care of this without any additional hardware. Recovery Mode If the card is poorly configured, it can be pushed back into Recovery Mode - preventing unintentional bricking. Auto-BCC Calculation The card automatically calculates BCC values, saving time and avoiding making the card undetectable. Password Protection / One-Time-Write Emulation Configuration commands can be protected with a customisable password; it will not respond to magic commands or direct writes to restricted values unless the correct password is given, allowing the card to function as a "One-Time-Write" card. Programming Compatibility The card can be programmed on multiple platforms: Proxmark3 RDV4.01 (via manual commands or LUA scripts) iCopy-XS (via the menu with LUA scripts) or in PC-Mode LibNFC (via manual commands) Windows Platforms + LibNFC reader/writer (via GUI software) Technical Resources Ultimate Magic Card Command Documentation Proxmark / iCopy-XS LUA Script Documentation