--- product_id: 229650008 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: "€ 1.19" currency: EUR in_stock: false reviews_count: 13 url: https://www.desertcart.hr/products/229650008-lexi-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid store_origin: HR region: Croatia --- # 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:** € 1.19 **Availability:** ❌ Out of Stock ## Summary > 🔑 Unlock the future of smart 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?** € 1.19 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/229650008-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, ensuring effortless integration. - • **Compact & Reliable Range:** Optimized for 0-10cm reading distance, perfect for fast, contactless entry. - • **Encrypted Security Built-In:** Each card features a unique, reprogrammable encrypted ID for top-tier access control. - • **Endless Rewrites, Limitless Access:** Supports over 100,000 read/write cycles for unmatched durability and flexibility. ## Overview The LEXI 20pcs Changeable UID Smart Cards operate at 13.56MHz frequency, compatible with all MI-Fare Classic 1K systems. Each PVC card supports over 100,000 rewrites and features a unique encrypted UID, ensuring secure, flexible, and durable access control solutions for offices, apartments, and more. ## 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 Review: Perfect for making Skylanders - 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!! Review: Worked for Android Mifare Classic Tool; Skylanders; Not Rewriteable though! - I've ran into no issues apart from having done a few tests and noticed once it's written, the ACs are not interchangable, I'm not too entirely sure how to change that encoding but be careful when you write as to not duplicate the wrong dump file. The item worked perfectly for me, I just have to be cautious because if I mess up, I lose that card permanently as it becomes locked. ## 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 | |---------------|-------| | Customer Reviews | 4.4 out of 5 stars 102 Reviews | ## 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 ### ⭐⭐⭐⭐⭐ Perfect for making Skylanders *by G***N on August 20, 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!! ### ⭐⭐⭐⭐⭐ Worked for Android Mifare Classic Tool; Skylanders; Not Rewriteable though! *by C***Y on November 27, 2024* I've ran into no issues apart from having done a few tests and noticed once it's written, the ACs are not interchangable, I'm not too entirely sure how to change that encoding but be careful when you write as to not duplicate the wrong dump file. The item worked perfectly for me, I just have to be cautious because if I mess up, I lose that card permanently as it becomes locked. ### ⭐⭐⭐⭐⭐ Good 5577 cards *by K***R on September 15, 2023* The cards work well for my use case. I've written a few of them and re-written them. They seem pretty effective. ## 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.hr/products/229650008-lexi-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid](https://www.desertcart.hr/products/229650008-lexi-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-01*