---
product_id: 468890984
title: "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: "C$3178"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/468890984-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid-pvc
store_origin: NI
region: Nicaragua
---

# 13.56MHz frequency 100,000 rewrites Unique encrypted ID 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:** C$3178
**Availability:** ✅ In Stock

## Summary

> 🔑 Unlock Your Access Potential!

## Quick Answers

- **What is this?** 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?** C$3178 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/468890984-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-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

- • **ISO Compliant:** Fully compliant with ISO/IEC 14443A protocol for universal use.
- • **Effortless Access:** Reading distance of 0-10cm (0-4 inches) for quick entry.
- • **Tailored Security:** Each card features a unique encrypted ID for enhanced security.
- • **Seamless Compatibility:** Works flawlessly with all door access control systems.
- • **Unlock Endless Possibilities:** Support read, write, and copy with over 100,000 rewrites!

## Overview

The Lexi20pcs Changeable UID Smart Card is a versatile and secure solution for door access control, featuring a rewritable design that supports over 100,000 uses. Operating at a frequency of 13.56MHz, these cards are compatible with various systems and come with unique encrypted IDs for added security. With a reading distance of up to 10cm, they ensure quick and efficient access while adhering to ISO/IEC 14443A standards.

## 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 | #719 in Home Security Systems |
| Date First Available | May 26, 2020 |
| Item Weight | 4.2 ounces |
| Item model number | IC |
| Manufacturer | LEXI |
| Product Dimensions | 3.35 x 2.13 x 0.07 inches |

## Images

![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)

## 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.

## 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.ni/products/468890984-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid-pvc](https://www.desertcart.ni/products/468890984-20pcs-changeable-uid-smart-card-rewritable-13-56mhz-rfid-pvc)

---

*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-10*