---
product_id: 618575696
title: "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"
brand: "lexi"
price: "$144.47"
currency: USD
in_stock: false
reviews_count: 5
category: "Lexi"
url: https://www.desertcart.ec/products/618575696-lexi-20pcs-rewritable-uid-smart-card-13-56mhz-changeable-rfid
store_origin: EC
region: Ecuador
---

# 13.56MHz frequency - universal compatibility 100,000+ rewrites - endless reusability Unique encrypted UID - secure & customizable 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

**Brand:** lexi
**Price:** $144.47
**Availability:** ❌ Out of Stock

## Summary

> 🔑 Unlock smarter security with every swipe!

## Quick Answers

- **What is this?** 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 by lexi
- **How much does it cost?** $144.47 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/618575696-lexi-20pcs-rewritable-uid-smart-card-13-56mhz-changeable-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

- • **Limitless Rewrites:** Over 100,000 rewrite cycles let you update credentials without waste or hassle.
- • **Encrypted Unique ID:** Each card features a secure, reprogrammable UID for personalized security control.
- • **Compact & Durable Design:** Slim PVC build with waterproof resilience, perfect for everyday professional use.
- • **ISO/IEC 14443A Compliant:** Fully compatible with industry-standard MIFARE Classic 1K protocols for trusted performance.
- • **Seamless Access Integration:** Works flawlessly with all 13.56MHz door access systems for instant entry.

## Overview

The LEXI 20pcs Rewritable UID Smart Cards operate at 13.56MHz frequency, compatible with all major door access control systems. Each card supports over 100,000 rewrites and features a unique encrypted ID, making them ideal for secure, reusable access management. Designed with durable PVC material and compliant with ISO/IEC 14443A standards, these cards offer reliable performance for offices, apartments, and professional environments.

## 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 and description. Do not buy.
Review: Worked great to create NFC card skylanders

## 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 |
| Are batteries included? | No |
| Assembly Instructions Description | No assembly required |
| Best Sellers Rank | #279,555 in Home Improvement ( See Top 100 in Home Improvement ) #943 in Home Security Alarms |
| Brand | Lexi |
| Colour | White |
| Compatible Devices | Smartphone |
| Connectivity Technology | Wireless |
| Control Method | App |
| Country of Origin | USA |
| Customer Reviews | 4.0 4.0 out of 5 stars (46) |
| Date First Available | 25 July 2023 |
| Included Components | 20pcs Rewritable UID Smart Card |
| Installation Type | Self-Adhesive |
| Item Dimensions LxWxH | 8.4 x 5.5 x 0.1 Centimeters |
| Item Height | 0.05 Inches |
| Item Weight | 118 g |
| Item Width | 2.17 Inches |
| Item dimensions L x W x H | 8.4 x 5.5 x 0.1 Centimeters |
| Item model number | UID-20 |
| Manufacturer | LEXI |
| Model number | UID-20 |
| Net Quantity | 20.0 Count |
| Power Source | Battery Powered |
| Product Dimensions | 8.38 x 5.51 x 0.13 cm; 117.93 g |
| Recommended Uses For Product | Home Security |
| Sensor Technology | RFID |
| UPC | 191171075802 |
| Voltage | 24 Volts |

## Product Details

- **Brand:** Lexi
- **Colour:** White
- **Compatible Devices:** Smartphone
- **Item dimensions L x W x H:** 8.4 x 5.5 x 0.1 Centimeters
- **Power Source:** Battery Powered

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/212hQMxHXlL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/31a9Yup7M0L.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/31ddYVA1f1L.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/41B+Yb9l6SL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/41TXEztA6uL.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

### ⭐ Review
*by T***I on 27 December 2023*

Block 0 can not be written. Misleading product and description. Do not buy.

### ⭐⭐⭐⭐⭐ Review
*by C***E on 29 March 2025*

Worked great to create NFC card skylanders

### ⭐⭐⭐⭐⭐ Review
*by R***. on 24 August 2024*

Make sure you get the right cards!! RFID cards arent all the same, learn from my mistakes..

## 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

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-27*