{"product_id":"100pcs-13-56mhz-rfid-ic-keyfob-tags-access-control-keychain","title":"100pcs 13.56MHz RFID IC Keyfobs Tags – Access Control Keychain","description":"\u003ch2\u003eLUCKING DOOR 100-Pack 13.56MHz RFID IC M1 Keyfob Tags for Access Control \u0026amp; Attendance Management\u003c\/h2\u003e\n\u003cp\u003eManage building access, staff attendance, school campus entry, parking systems, and more with this professional-grade bulk pack of 100 RFID keyfob tags. Operating at the globally recognized 13.56MHz frequency and built on the reliable MIFARE Classic 1K (S50) standard, these compact keychain tokens are compatible with virtually all standard RFID reader systems. Each keyfob is made from durable ABS plastic, includes a key ring, and is water resistant for everyday use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠️ Important Note:\u003c\/strong\u003e These are \u003cstrong\u003eRead-Only \/ Fixed UID\u003c\/strong\u003e keyfobs — the serial number is permanently encoded. They are \u003cstrong\u003enot\u003c\/strong\u003e writable or changeable UID tags. Please ensure this matches your system's requirements before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 13.56MHz (MIFARE Classic 1K \/ S50)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMemory:\u003c\/strong\u003e 8K-bit EEPROM, divided into 16 sectors × 4 blocks × 16 bytes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnique ID:\u003c\/strong\u003e Fixed 32-bit serial number per card\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePer-Sector Security:\u003c\/strong\u003e Each sector has independent password and access controls\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-Collision:\u003c\/strong\u003e Supports multi-card operation for high-traffic environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e Up to 10 years; supports up to 100,000 read\/write cycles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRead Range:\u003c\/strong\u003e 3–10 cm (dependent on reader hardware)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCommunication Rate:\u003c\/strong\u003e 106 Kbps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to 50°C (up to 90% humidity)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS plastic — lightweight and durable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Resistant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKey Ring Included:\u003c\/strong\u003e Yes, with every keyfob\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Internal Battery Required:\u003c\/strong\u003e Passive operation via RF field\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBuilding \u0026amp; door access control systems\u003c\/li\u003e\n  \u003cli\u003eEmployee attendance tracking\u003c\/li\u003e\n  \u003cli\u003eHotel room key systems\u003c\/li\u003e\n  \u003cli\u003eSchool \u0026amp; campus access management\u003c\/li\u003e\n  \u003cli\u003eParking lot entry \u0026amp; payment\u003c\/li\u003e\n  \u003cli\u003eTransportation payment systems\u003c\/li\u003e\n  \u003cli\u003eSocial security \u0026amp; ID management\u003c\/li\u003e\n  \u003cli\u003eMunicipal \u0026amp; ancillary service payments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 pcs per lot\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMIFARE Classic 1K (S50)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.56 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1K (8K-bit EEPROM)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRead\/Write Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3–10 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e106 Kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Retention\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRewrite Cycles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100,000 times\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20°C to 50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor Note\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSlight color variance may occur due to photography lighting\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLUCKING DOOR\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLK100\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eFor further information on RFID technology standards and security, visit the NIST Guidelines for Securing RFID Systems.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Are these RFID keyfob tags compatible with my existing access control reader?\u003c\/h4\u003e\n\u003cp\u003eA: These keyfobs operate at 13.56MHz using the MIFARE Classic 1K (S50) standard, which is compatible with the vast majority of commercial access control readers and door entry systems that support this widely adopted protocol. Please confirm your reader supports 13.56MHz ISO 14443A before purchasing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I reprogram or change the UID on these keyfob tags?\u003c\/h4\u003e\n\u003cp\u003eA: No — these are fixed, read-only UID keyfobs. The 32-bit serial number is permanently set and cannot be altered. If your system requires a changeable or writable UID, you will need a different product type (UID writable tags).\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many keyfobs come in a pack, and what is included?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 100 individual RFID keyfob tags. Every keyfob comes with a key ring pre-attached, making them immediately ready for use or distribution to employees, residents, students, or other users.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the read range of these RFID keyfobs?\u003c\/h4\u003e\n\u003cp\u003eA: The effective read\/detection distance is between 3 and 10 cm. The exact range depends on the power and antenna quality of your RFID reader device.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are these RFID keyfob tags compatible with my existing access control reader?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These keyfobs operate at 13.56MHz using the MIFARE Classic 1K (S50) standard, which is compatible with the vast majority of commercial access control readers and door entry systems that support this widely adopted protocol. Please confirm your reader supports 13.56MHz ISO 14443A before purchasing.\"}}, {\"@type\": \"Question\", \"name\": \"Can I reprogram or change the UID on these keyfob tags?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — these are fixed, read-only UID keyfobs. The 32-bit serial number is permanently set and cannot be altered. 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