---
product_id: 119530222
title: "Writable Dual chip UID Changeable MF1 1K with 125_LF T5577 Rewritable ID/IC Card for Copy Clone Backup"
brand: "xcrfid"
price: "16120CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Xcrfid"
url: https://www.desertcart.sn/products/119530222-writable-dual-chip-uid-changeable-mf1-1k-with-125-lf
store_origin: SN
region: Senegal
---

# 125 kHz & 13.56 MHz dual frequency Dual chip rewritable tech UID changeable zero sector security Writable Dual chip UID Changeable MF1 1K with 125_LF T5577 Rewritable ID/IC Card for Copy Clone Backup

**Brand:** xcrfid
**Price:** 16120CFA
**Availability:** ✅ In Stock

## Summary

> 🔐 Unlock ultimate access control with the card that clones everything!

## Quick Answers

- **What is this?** Writable Dual chip UID Changeable MF1 1K with 125_LF T5577 Rewritable ID/IC Card for Copy Clone Backup by xcrfid
- **How much does it cost?** 16120CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/119530222-writable-dual-chip-uid-changeable-mf1-1k-with-125-lf)

## Best For

- xcrfid enthusiasts

## Why This Product

- Trusted xcrfid brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Chip Powerhouse:** Seamlessly clone and manage two credentials on one sleek card.
- • **Plug & Play Convenience:** No external power needed—ready for instant access control, ePayment, and more.
- • **Wallet-Friendly Durability:** Slim, flexible design fits comfortably in your wallet or badge holder.
- • **Rewritable & UID Changeable:** Customize your card’s UID and data with zero sector writable T5577 chip.
- • **Universal Frequency Compatibility:** Effortlessly integrates with both 125 kHz RFID and 13.56 MHz NFC systems.

## Overview

The Writable Dual Chip UID Changeable MF1 1K with 125_LF T5577 card is a versatile, rewritable ID solution featuring dual frequency support (125 kHz RFID and 13.56 MHz NFC). It offers a changeable UID zero sector for enhanced security and cloning capabilities, compatible with multiple access control systems. Designed for professional use in access control, time attendance, and ePayment, this slim, durable card requires no external power and supports backup of popular card types like S50 MF 1K and EM4100.

## Description

Package Include : 10pcs * UID and T5577 Dual chip cardsApplication Access control, time attendace, ticketing, ePayment and any other application where the integrity and security of the data stored is vital. ID cards and Proximity cards offer a diverse range of functions that are commonly used for such applications as access control, time and attendance, cashless payment, and event management. ID cards are available with ISO card and also as clamshell cards.

Review: Both chips worked using Flipper Zero - I used these to clone a Schlage 9691T fob, which in my case uses 125 kHz RFID for gates and building entry, and 13.6 MHz NFC for the Schlage BE467F unit entry door lock. It worked fine (both protocols) using a Flipper Zero. Cloning the 125 kHz RFID portion was trivially easy. Cloning the 13.6 MHz NFC portion using the Flipper Zero required some work and time, and probably shouldn't be attempted by those that don't have experience or understanding of these protocols UNLESS they are willing to take the time to research and follow instructions to the letter. But after getting past the hurdles, it worked great. I'm very happy with these cards.
Review: Exactly as described! - Proxmark3 detects a T55x7 (consistent with a T5577) and a Mifare Classic or Plus (either are 1k+). I've cloned cards to both chips successfully and they work exactly as they should. These two chips in one card gets you the ability to clone just about anything to these as needed and can be used independently (one credential on each chip for two different credentials on the same card). They're a tiny bit thicker than a credit card (.037" versus a credit card's .032"), but thinner than HID cards that I've carried in the past. They're plenty flexible and ride nicely in a wallet. There's enough space around the antennas (visible with a bright light source) that you could punch out a lanyard hole if you were careful. I'd recommend these for anyone looking for an all-in-one card!

## Features

- Multiple frequencies, The tag made by UID changeable zero sector writable with T5577 rewritable chip .
- XCRFID UID changeable magic card is 4 byte UID , zero sector can be writable , can be copy back up S50 MF 1K cards
- XCRFID T5577 card support back up EM4100 TK4100 EM4305 125_LF ID Card
- Dual frequency,dual chip,compatible 125 and 13.56 access control system
- Readable and rewritable,No external power require

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MJ7JNVV |
| Best Sellers Rank | #92,200 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #58 in Commercial Access Cards |
| Customer Reviews | 4.4 4.4 out of 5 stars (63) |
| Date First Available | January 7, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.89 ounces |
| Item model number | xc121 |
| Manufacturer | xcrfid |

## Images

![Writable Dual chip UID Changeable MF1 1K with 125_LF T5577 Rewritable ID/IC Card for Copy Clone Backup - Image 1](https://m.media-amazon.com/images/I/41IZOInHFGL.jpg)

## Questions & Answers

**Q: How many cards are included?**
A: Hi , 10pcs T5577 with 4 byte  UID Changeable dual chip card included .

**Q: where is it manufactured?**
A: Its made in China. Our factory in ShenZhen China. It's nearly hongkong .

**Q: Will these work with the Proxmark3?**
A: Yes

**Q: Hi there, we bought these cards and we have a few locks in our office. the rfid card was able to program on some but not on the others, please help.**
A: Do you have program device? pls send message to our through amazon online message

## Customer Reviews

### ⭐⭐⭐⭐⭐ Both chips worked using Flipper Zero
*by T***O on February 14, 2024*

I used these to clone a Schlage 9691T fob, which in my case uses 125 kHz RFID for gates and building entry, and 13.6 MHz NFC for the Schlage BE467F unit entry door lock. It worked fine (both protocols) using a Flipper Zero. Cloning the 125 kHz RFID portion was trivially easy. Cloning the 13.6 MHz NFC portion using the Flipper Zero required some work and time, and probably shouldn't be attempted by those that don't have experience or understanding of these protocols UNLESS they are willing to take the time to research and follow instructions to the letter. But after getting past the hurdles, it worked great. I'm very happy with these cards.

### ⭐⭐⭐⭐⭐ Exactly as described!
*by C***H on May 26, 2022*

Proxmark3 detects a T55x7 (consistent with a T5577) and a Mifare Classic or Plus (either are 1k+). I've cloned cards to both chips successfully and they work exactly as they should. These two chips in one card gets you the ability to clone just about anything to these as needed and can be used independently (one credential on each chip for two different credentials on the same card). They're a tiny bit thicker than a credit card (.037" versus a credit card's .032"), but thinner than HID cards that I've carried in the past. They're plenty flexible and ride nicely in a wallet. There's enough space around the antennas (visible with a bright light source) that you could punch out a lanyard hole if you were careful. I'd recommend these for anyone looking for an all-in-one card!

### ⭐⭐⭐⭐ Does what is needed
*by A***R on June 9, 2025*

Ordered for creating clones of AC cards, does a pretty solid job of "base" access, but ran into issues for some areas, overall nothing some quick thinking and tailgating can't fix.

## Frequently Bought Together

- Writable Dual chip UID Changeable MF1 1K with 125_LF T5577 Rewritable ID/IC Card for Copy Clone Backup
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**Shop now:** [https://www.desertcart.sn/products/119530222-writable-dual-chip-uid-changeable-mf1-1k-with-125-lf](https://www.desertcart.sn/products/119530222-writable-dual-chip-uid-changeable-mf1-1k-with-125-lf)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-24*