Frequency MF S50 7Byte UID Changeable White Card 1 Piece Overview A single frequency access card with a 7byte UID that can be changed by compatible encoders. The plain white surface and standard card format make it easy to encode, print, or label for use in access control, identification, and other HF RFID applications. Key benefits Flexible UID management: UID can be rewritten with compatible encoders, enabling reprogramming for system updates, replacements, or testing without replacing the physical card. Broad compatibility: Designed for systems that accept MF S50 7byte UID cards and for standard HF readers and writers used in access control and identification systems. Ready for : Plain white face is suitable for direct printing, labeling, or applying overlays, simplifying onsite personalization. Lowprofile and convenient: Singlepiece card format fits wallets and card holders and is easy to distribute and manage. Features and attributes Type: Frequency MF S50 with 7byte changeable UID Color: White Quantity: 1 piece Function: RFID data storage and identification for access control, time attendance, membership, and similar applications Compatibility: Works with MF S50 compatible HF readers and encoders that support 7byte UID programming Surface: Plain white for printing or labeling Handling: Designed for standard card handling and encoding workflows Typical use scenarios Access control: Program the card to a building access system for employee or contractor entry. When a UID change is required for reassignment, update the UID with a compatible encoder rather than replacing the card. Time and attendance: Use as a staff timeclock badge that can be encoded and reprogrammed as staff roles or card assignments change. Membership and events: Issue as a reusable membership card or event pass where the white surface is printed with member information and the UID can be updated between events or memberships. Notes for buyers UID change requires a compatible HF encoder that supports 7byte UID programming. Verify encoder and reader compatibility before attempting UID changes. Intended for systems that expressly accept MF S50 7byte UID cards. Functionality depends on host system support and reader capabilities. This singlepiece HF MF S50 7byte UID changeable white card offers straightforward compatibility and practical flexibility for environments that require programmable RFID identification.