{"product_id":"rewritable-125khz-rfid-blank-pvc-cards-t5577-em4305-10-pack","title":"Rewritable 125KHz RFID Blank PVC Cards T5577 EM4305 – 10 Pack","description":"\n\u003ch2\u003eRewritable 125KHz RFID Blank PVC Cards – T5577 \/ EM4305 Compatible\u003c\/h2\u003e\n\u003cp\u003eUpgrade your access control setup with these programmable 125KHz RFID blank PVC cards. Compatible with T5577 and EM4305 chip standards, each card arrives without a pre-assigned ID number, making them fully ready to program, clone, and rewrite using any compatible RFID reader\/writer. Whether you're managing entry to an office, apartment, gym, or storage facility, these versatile cards offer a reliable, cost-effective solution.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRewritable \u0026amp; Reprogrammable:\u003c\/strong\u003e Each blank card can be written, erased, and rewritten multiple times using a compatible 125KHz RFID copier or programmer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Chip Compatibility:\u003c\/strong\u003e Supports T5577 and EM4305 chip protocols, widely used in proximity door entry, time-attendance systems, and access control setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard Card Size:\u003c\/strong\u003e Measures 8.5 × 5.3 cm — identical to a standard credit card, fitting most card holders and badge holders with ease.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable PVC Construction:\u003c\/strong\u003e Made from high-quality PVC material for long-lasting everyday use. Resistant to bending and general wear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Pre-Assigned ID:\u003c\/strong\u003e Cards ship without a stored ID number, giving you complete control over programming and cloning.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in 3 Color Options:\u003c\/strong\u003e Choose the color that best suits your organization or personal style.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack of 10:\u003c\/strong\u003e Ideal for offices, rental properties, co-working spaces, or any multi-user access environment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 125KHz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Type:\u003c\/strong\u003e T5577 \/ EM4305\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PVC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8.5 × 5.3 cm (standard CR80 card size)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Programmed ID:\u003c\/strong\u003e None (blank)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 cards per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eUse a compatible 125KHz RFID card reader\/writer (sold separately) to program or clone your desired access credentials onto each blank card.\u003c\/li\u003e\n  \u003cli\u003eTest the card with your access control system to confirm it reads correctly.\u003c\/li\u003e\n  \u003cli\u003eDistribute cards to users or attach to a lanyard\/badge holder as needed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eWho Are These Cards For?\u003c\/h3\u003e\n\u003cp\u003eThese rewritable RFID cards are perfect for IT professionals, security integrators, property managers, hobbyists, and anyone needing programmable proximity cards for door entry or identification systems. They are also widely used for cloning existing 125KHz access cards for backup or replacement purposes.\u003c\/p\u003e\n\n\u003cp\u003eFor more information on RFID technology standards and best practices for physical access control, visit the National Institute of Standards and Technology (NIST) – Guidelines for Securing RFID Systems.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What RFID chip types are compatible with these blank 125KHz RFID cards?\u003c\/h4\u003e\n\u003cp\u003eA: These cards use T5577 and EM4305 chips, two of the most widely supported rewritable 125KHz chip standards. They are compatible with most 125KHz RFID readers, writers, and access control systems that support these protocols, including many common proximity door entry and time-attendance systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How many times can these RFID cards be rewritten or reprogrammed?\u003c\/h4\u003e\n\u003cp\u003eA: T5577 and EM4305 chips support a very high number of write cycles (typically up to 100,000 or more), making them well suited for repeated programming, testing, and cloning tasks without significant degradation in performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need special equipment to program these blank RFID cards?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, you will need a compatible 125KHz RFID card reader\/writer or duplicator (sold separately) to program these cards. Many affordable handheld RFID copiers available on the market support T5577 and EM4305 chips. Simply place the card on the device and follow the programmer's instructions to clone or write new data.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What size are these RFID cards, and will they fit in standard card holders?\u003c\/h4\u003e\n\u003cp\u003eA: Each card measures 8.5 × 5.3 cm, which is the standard CR80 credit card size. They will fit in the vast majority of standard card holders, badge holders, and lanyards without any modification.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What RFID chip types are compatible with these blank 125KHz RFID cards?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These cards use T5577 and EM4305 chips, two of the most widely supported rewritable 125KHz chip standards. 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