---
product_id: 223120931
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: "KD 1.30"
currency: KWD
in_stock: true
reviews_count: 8
category: "Lexi"
url: https://www.desertcart.com.kw/products/223120931-20pcs-rewritable-uid-smart-card-13-56mhz-changeable-rfid-pvc
store_origin: KW
region: Kuwait
---

# 13.56MHz universal frequency 100,000+ rewrites guaranteed Unique encrypted UID per card 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:** KD 1.30
**Availability:** ✅ In Stock

## Summary

> 🔑 Unlock smarter access with LEXI’s rewritable RFID cards — security that evolves with you!

## 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?** KD 1.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/223120931-20pcs-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

- • **Encrypted Security:** Each card sports a unique, encrypted ID ensuring top-tier access control integrity.
- • **Optimal Read Range:** Reliable 0-10cm reading distance for swift, hassle-free entry every time.
- • **Endless Reusability:** Over 100,000 rewrite cycles keep your security fresh and flexible without waste.
- • **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

The LEXI 20pcs Rewritable UID Smart Cards operate at 13.56MHz, compatible with all major door access control systems. Each card features a unique encrypted ID and supports over 100,000 rewrites, ensuring long-term, flexible security solutions. Designed with durable PVC material, these cards offer a reliable 0-10cm read range and comply with ISO/IEC 14443A standards, making them ideal for offices, apartments, and commercial spaces.

## 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: Worked great! - Worked great to create NFC card skylanders
Review: Make sure you get the right one! - Make sure you get the right cards!! RFID cards arent all the same, learn from my mistakes..

## 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 |
| Best Sellers Rank | #42,299 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Commercial Access Cards |
| Brand | Lexi |
| Color | White |
| Compatible Devices | [INFERRED] Devices using 13.56MHz RFID technology for door access control |
| Connectivity Technology | Wireless |
| Control Method | App |
| Customer Reviews | 4.0 out of 5 stars 46 Reviews |
| Installation Method | Self-Adhesive |
| Item Dimensions | 3.3 x 2.17 x 0.05 inches |
| Item Weight | 4.16 ounces |
| Item dimensions L x W x H | 3.3 x 2.17 x 0.05 inches |
| Manufacturer | LEXI |
| Model Number | UID-20 |
| Power Source | Battery Powered |
| Sensor Technology | RFID |
| UPC | 191171075802 |
| Unit Count | 20.0 Count |
| Voltage | 24 Volts |

## Product Details

- **Brand:** Lexi
- **Color:** White
- **Compatible Devices:** [INFERRED] Devices using 13.56MHz RFID technology for door access control
- **Item dimensions L x W x H:** 3.3 x 2.17 x 0.05 inches
- **Power Source:** Battery Powered

## 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

### ⭐⭐⭐⭐⭐ Worked great!
*by C***E on March 29, 2025*

Worked great to create NFC card skylanders

### ⭐⭐⭐⭐⭐ Make sure you get the right one!
*by R***. on August 24, 2024*

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

### ⭐ these cards are NOT 0 block rewritable
*by M***N on August 22, 2024*

Even though it says in the title, when tried, a writer is only able to access 63 of 64 blocks, meaning it's NOT 0 block rewritable. For some uses, these will work, but I HIGHLY recommend to find some other cards. They just lied here.

## 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 Kuwait*
*Store origin: KW*
*Last updated: 2026-02-14*