ISO 14443A CUID card, Gen 3 , 13.56 MHz
ISO 14443A CUID card, Gen 3 , 13.56 MHz
ISO 14443A CUID Card – Gen 3 Chip, Changeable UID, Compatible with Mifare 1k S50
The ISO 14443A CUID card with a Gen 3 chip allows UID modification and is fully compatible with Mifare 1k S50. Thanks to the Gen 3 chip, the card can be programmed using Android phones (Apple phones do not support RFID). Available in two variants with either a 4-byte or 8-byte UID. The card is white plastic, sized 85.6 × 54 × 0.82 mm.
Specifications:
- RFID chip: UID Gen 3
- UID lenght: 4byte/7byte
- Frequency: 13.56 MHz
- Programmable: YES
- Format: ISO14443
- Reading and writing distance: 2.5 ~ 10 cm (depends on the RFID reader)
- Reading and writing time: 1–2 ms
- Capacity: 1Kb
- Dimensions: 86*54*0.85 mm
- Material: PVC
- Color: white
- Operating temperature: -20 °C ~ 85 °C

Notes on "Magic Cards", or replaceable UID EN:
https://github.com/RfidResearchGroup/proxmark3/blob/master/doc/magic_cards_notes.md
Application area: Community security, access control to residential buildings, parking cards, employee time cards, etc.

