13.56MHz RFID Proximity ID Card Key Tag Writable Rewritable CUID Fob Tag Compatible with MIFARE Classic 1K Key benefits Flexible credentialing: Writable and rewritable CUID allows custom programming of each fob to match system requirements or to lost credentials without replacing the physical tag. Easy integration: Designed for compatibility with MIFARE Classic 1K systems, enabling straightforward use with existing readers and access control setups. Convenient form factor: Compact key fob design fits on a standard keyring for everyday carry and fast presentation at readers. Durable for daily use: Solid housing protects the electronics against routine handling, making these tags suitable for turnover environments. What this product does and why you need it Provides contactless identification at 13.56MHz for access control, identification, and data exchange. Lets administrators program and reprogram the CUID as needed, simplifying credential lifecycle management and reducing the need for replacement items. Works with established MIFARE Classic 1K infrastructures, helping maintain compatibility with many access points and systems. Important attributes Function: Proximity RFID fob for contactless ID and data exchange; supports writable and rewritable CUID programming. Frequency: 13.56MHz operation for standard proximity reader compatibility. Compatibility: Compatible with MIFARE Classic 1K systems and readers that accept CUIDprogrammable fobs. Size and form: Compact key fob form factor designed for attachment to keys, lanyards, or badge holders. Material and construction: Enclosed in a sturdy plastic housing to withstand routine handling. Performance: Reliable contactless read and write performance with compatible 13.56MHz readers when used within normal operating conditions. Practical use scenarios Office access control: Issue programmable fobs to employees for secure door entry and to simplify credential replacement when personnel change roles. Time and attendance: Use fobs at employee terminals to log work time quickly and reliably during shift changes. Membership and facility access: Provide members with durable, reprogrammable fobs for gym access, parking gates, or shared workspace entry. Compatibility notes Intended for use with MIFARE Classic 1K compatible readers and systems that support writable CUID tags. Confirm reader firmware and system compatibility before deployment if CUID programming is required. Who this is for Facility managers, system integrators, event organizers, and administrators who need a compact, reprogrammable proximity credential compatible with MIFARE Classic 1K environments. Package and handling Supplied as readytoprogram key fobs. Program using compatible 13.56MHz readers and software that support writable CUID operations. This product offers a practical, reprogrammable contactless credential for environments that use MIFARE Classic 1K technology and require flexible, easy to manage identification tokens.