--- product_id: 467445133 title: "20pcs Rewritable UID Smart Card, 13.56MHz Changeable RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control, Block 0 Sector" brand: "lexi" price: "€ 45.19" currency: EUR in_stock: true reviews_count: 6 category: "Lexi" url: https://www.desertcart.gr/products/467445133-20pcs-rewritable-uid-smart-card-13-56mhz-changeable-rfid-pvc store_origin: GR region: Greece --- # 13.56MHz frequency 100,000+ rewrites Unique encrypted UID 20pcs Rewritable UID Smart Card, 13.56MHz Changeable RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control, Block 0 Sector **Brand:** lexi **Price:** € 45.19 **Availability:** ✅ In Stock ## Summary > 🔑 Unlock smarter access with every swipe — stay ahead, stay secure! ## Quick Answers - **What is this?** 20pcs Rewritable UID Smart Card, 13.56MHz Changeable RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control, Block 0 Sector by lexi - **How much does it cost?** € 45.19 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/467445133-20pcs-rewritable-uid-smart-card-13-56mhz-changeable-rfid-pvc) ## 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 - • **Optimal Range:** Reliable read distance up to 10cm for quick, hassle-free access every time. - • **Secure & Unique:** Each card features a unique encrypted ID, ensuring top-tier security and personalization. - • **Endless Reusability:** Over 100,000 rewrite cycles keep your access control fresh and flexible. - • **Durable & Waterproof:** Crafted from premium PVC, built to withstand daily use and environmental challenges. - • **Seamless Compatibility:** Works flawlessly with all 13.56MHz door access systems for instant integration. ## Overview This pack of 20 rewritable UID smart cards operates at 13.56MHz, compatible with MI-Fare Classic 1K systems and ISO/IEC 14443A protocol. Each card supports over 100,000 read/write cycles, features a unique encrypted ID, and offers a reliable reading range up to 10cm. Designed with durable PVC, these cards are waterproof and ideal for professional access control in offices, apartments, and secured 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 Review: Block 0 can not be written. Misleading product name - Block 0 can not be written. Misleading product and description. Do not buy. Review: Yes they work with Skylanders and are UID unlocked - If your looking to make Skylander Cards back up these are perfect. And since they are UID unlocked you can use swappers and use in multiplayer. ## Features - 1. Working frequency is 13.56MHz. Compatible with all kinds of door access control system. - 2. Support read, write and copy, over 100, 000 rewrite times. - 3. Each card with a unique encrypted ID number, can be reprogrammed. - 4. Suitable for 13.56MHz card reader and reading distance is 0-10cm (0-4inch). - 5. 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 | B0894KMDMG | | Alert Type | Motion Only | | Antenna Location | Home Security | | Best Sellers Rank | #161,906 in Computers ( See Top 100 in Computers ) #1,290 in External Memory Card Readers | | Brand | Lexi | | Built-In Media | 20pcs Rewritable UID Smart Card | | Color | White | | Colour | White | | Compatible Devices | Smartphone | | Compatible devices | Smartphone | | Connectivity Technology | Wireless | | Connectivity technology | Wireless | | Control Method | App | | Customer Reviews | 4.1 out of 5 stars 61 Reviews | | Installation Method | Self-Adhesive | | Item Dimensions | 8.4 x 5.5 x 0.1 centimeters | | Item Weight | 0.26 Pounds | | Item dimensions L x W x H | 8.4 x 5.5 x 0.1 centimeters | | Manufacturer | LEXI | | Maximum Range | 10 Centimeters | | Mfr Part Number | S601 | | Model Number | UID-20 | | Power Source | Corded Electric | | Power source | Corded Electric | | UPC | 191171075802 | | Unit Count | 20.0 Count | | Voltage | 24 Volts | ## Product Details - **Brand:** Lexi - **Colour:** White - **Power source:** Corded Electric - **Compatible devices:** Smartphone - **Item dimensions L x W x H:** 8.4 x 5.5 x 0.1 centimeters ## Images ![20pcs Rewritable UID Smart Card, 13.56MHz Changeable 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) ## Questions & Answers **Q: Can these cards be hole punched? Is the antenna depth from the edges consistent for each card? I need a depth greater than 9mm.** A: Yes, you can punch hole on its non-wire area, this won't influence the card functions. **Q: Can these be hole punched? NOT** A: yes, if not tough the inside wires. **Q: Are these Magic Gen1a, 1b, or 2?** A: This cards are 13.56MHz UID cards, they are writable and changeable, use to copy the 13.56MHz RFID cards. **Q: For hole punch, how far, in mm, from the edge is the antenna on the top edge (narrow side of card)?** A: You can illuminate the inside of the card with a strong light in a dark environment to see where its cables are located. ## Customer Reviews ### ⭐ Block 0 can not be written. Misleading product name *by T***I on 27 December 2023* Block 0 can not be written. Misleading product and description. Do not buy. ### ⭐⭐⭐⭐⭐ Yes they work with Skylanders and are UID unlocked *by C***L on 16 March 2026* If your looking to make Skylander Cards back up these are perfect. And since they are UID unlocked you can use swappers and use in multiplayer. ### ⭐⭐⭐⭐⭐ Gen 1a Mifare Classic 1K, works great. *by K***. on 2 May 2026* These are Gen 1a Mifare Classic 1K Cards. I was able to write to them with proxmark and programmed for my apartment key. I have attached an image of the initial readout. ## Frequently Bought Together - LEXI 20pcs Rewritable UID Smart Card, 13.56MHz Changeable RFID PVC Blank Card for 1K S50 MF1 Mi-fare Door Access Control, Block 0 Sector - ACS ACR122U NFC Reader Writer + 5 PCS Ntag213 NFC Tag + Free Software - LEXI 100pcs Mi-Fare 1K S50 RFID Card, Rewritable UID Smart Card, Premium 13.56MHz PVC Blank Card for Door Access Control, Block 0 Sector --- ## 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.gr/products/467445133-20pcs-rewritable-uid-smart-card-13-56mhz-changeable-rfid-pvc](https://www.desertcart.gr/products/467445133-20pcs-rewritable-uid-smart-card-13-56mhz-changeable-rfid-pvc) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-05*