100 Smart UID Keys — Mi1K S50 Rewritable RFID Cards and NFC Label Fobs What this product does 100 rewritable Mi1K S50 RFID cards and NFC label copy fobs for access control and identity tagging. Each unit stores a UID that can be written and reprogrammed, giving you flexible credential management across users and locations. NFC-enabled fobs let you copy or update UIDs quickly from compatible devices. Why you need it Scale access management: a bulk pack of 100 makes it easy to issue credentials for staff, residents, contractors or event attendees. Reduce overhead: rewritable cards and fobs let you reuse credentials instead of replacing lost or expired cards, saving cost and administrative time. Improve control and convenience: issue temporary or permanent credentials, update permissions on demand, and maintain consistent access policies. Key benefits and features Function: Designed for secure access control — read/write UIDs to program credentials for doors, gates, lockers or systems that accept Mi1K S50 tokens. Compatibility: Works with systems and readers that support Mi1K S50 (MiFare S50) tokens and NFC-enabled devices for label/fob programming. Flexibility: Rewritable memory lets you change assignments, repurpose cards, or create temporary passes quickly. Quantity: Pack of 100 provides cost-effective coverage for medium to large user groups or inventory of spare credentials. Ease of use: Simple to program and deploy with standard NFC/card programming tools. Reliable performance: Designed for repeated programming cycles and everyday access control use. Practical applications (examples) Office and commercial buildings: Issue employee badges and temporary contractor passes; reassign cards when roles change. Residential complexes and gated communities: Manage resident access, visitor credentials and service personnel schedules without issuing single-use cards. Events and membership programs: Provide temporary access for attendees, vendors, or seasonal staff and reclaim cards after use. What you get 100 rewritable Mi1K S50 RFID cards and NFC label copy fobs, ready to program for your access control setup. A practical, reusable solution for managing multiple users, reducing replacement costs, and simplifying credential workflows. Purchase these Mi1K S50 Smart UID Keys to streamline access control, cut operating costs, and maintain flexible, reusable credentials for a wide range of security needs.