--- product_id: 468890984 title: "LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector" brand: "lexi" price: "FREE" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.pt/products/468890984-lexi-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid store_origin: PT region: Portugal --- # 13.56MHz frequency 100,000+ rewrites Unique encrypted UID LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector **Brand:** lexi **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🔑 Unlock smarter access with LEXI’s endlessly rewritable RFID cards! ## Quick Answers - **What is this?** LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector by lexi - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/468890984-lexi-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid) ## Best For - lexi enthusiasts ## Why This Product - Trusted lexi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Rugged & Ready:** Waterproof PVC design with wide temperature tolerance (-40°C to 65°C) for all environments. - • **Seamless Compatibility:** Works flawlessly with all 13.56MHz door access control systems for effortless integration. - • **Optimal Proximity Range:** Reliable reading distance up to 10cm, balancing convenience with security. - • **Encrypted Security Built-In:** Each card features a unique, reprogrammable encrypted ID ensuring top-tier access control. - • **Endless Rewrites, Limitless Access:** Supports over 100,000 read/write cycles for unmatched durability and sustainability. ## Overview The LEXI 20pcs Changeable UID Smart Cards operate at 13.56MHz frequency, compatible with all MI-Fare Classic 1K systems. Each PVC card features a unique encrypted ID, supports over 100,000 rewrites, and offers a reliable reading range of up to 10cm. Designed for durability with waterproof material and wide temperature tolerance, these cards are ideal for professional-grade door access control in offices, apartments, and secure facilities. ## Description Product Feature Chip: UID Material: PVC Frequency: 13.56MHz Material: High quality ABS Operation frequency: 13.56MHz Read and rewrite key tags Compatible with all Door Entry system Reading distance: 0-10cm (Depending on the reader's design,environment and application) Working temperature: -40 °C~ 65 °C Store temperature: -25 °C ~50 °C Read/write Times: 100000 times Product Description 1. High quality RFID cards proximity door control access. 2. Each card without a unique ID number 3. Suitable for 13.56MHz card reader and reading distance is 0-10cm. 4. Widely used at apartment, office, park and other places. 5. 100% brand new and high quality. 6. Read, Writable and Rewrite. Waterproof 7. Can copy write mi-fare 1k key card ## Features - ★Support read, write and copy, over 100, 000 rewrite times. - ★Working frequency is 13.56MHz. Compatible with all kinds of door access control system. - ★Each card with a unique encrypted ID number, can be reprogrammed. - ★Suitable for 13.56MHz card reader and reading distance is 0-10cm (0-4inch). - ★Fully compatible to MI-FARE Classic 1K,4-byte UID, 1K Byte memory, organized in 16 sectors of 4 blocks, compliant to ISO/IEC 14443A protocal. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0895Y5LGT | | Best Sellers Rank | #145 in Home Alarm Systems | | Date First Available | 27 August 2022 | | Item Model Number | IC | | Manufacturer | Lexi | | Product Dimensions | 8.5 x 5.4 x 0.18 cm; 118 g | ## Images ![LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector - Image 1](https://m.media-amazon.com/images/I/51xXeN0EWKL.jpg) ![LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector - Image 2](https://m.media-amazon.com/images/I/51dF863U0zL.jpg) ![LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector - Image 3](https://m.media-amazon.com/images/I/4186hSxQvBL.jpg) ![LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector - Image 4](https://m.media-amazon.com/images/I/51dwxgNDuIL.jpg) ![LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector - Image 5](https://m.media-amazon.com/images/I/31a9Yup7M0L.jpg) ## Questions & Answers **Q: Is this a gen 2 card? Is it writable by Android devices?** A: This card is 13.56MHz writable UID card, can copy mi-fare IC card, used for access control system. you can use rfid device to program this card. **Q: are they compatible with Isonas?** A: I am not know too much about Isonas, this card is 13.56MHz writable UID card, you need to guarantee the working frequency of your access control device is 13.56MHz. **Q: I bought this product with the intention of being able to write to sector 0, but i can write to all sectors except sector 0, so i can't change the uid** A: you need a more powerful card reader. ## Customer Reviews ### ⭐⭐ Not CUID *by on Reviewed in Canada 13 April 2025* Despite what other Amazon review says, this card is NOT Gen 2, and the UID cannot be written using Android MCT! The review claiming it can should be deleted as it is highly misleading ### ⭐⭐⭐⭐⭐ Excelente *by on Reviewed in Mexico 29 June 2023* Sirve tal cual su descripción indica ### ⭐⭐⭐⭐⭐ Perfect for making Skylanders *by on Reviewed in the United States 20 August 2025* These are the cards that work for making Skylanders! Hopefully this helps with anyone searching for the same. :) Lots of trial and error led us here and these 100% work!! ## Frequently Bought Together - LEXI 20pcs Changeable UID Smart Card Rewritable 13.56MHz RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control Block 0 Sector - UID Rewrite Changeable 13.56mhz Smart IC Key Tag Writable Zero 0 Sector 0 Block GEN1 Back up S50 1k Card for ACR122U-A9 Device Copier Clone 10pcs/lot by XCRFID - OBO HANDS Pcs of 10 UID IC Card Changeable Smart Card Clone Card for 1K S50 MF1 RFID 13.56MHz Access Control Block 0 Sector Writable --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/468890984-lexi-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid](https://www.desertcart.pt/products/468890984-lexi-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-11-03*