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4 Byte UID S70 4K Magic Key Fob

2 reviews

$4.79

SKU: MT-KF-S70-4K-4B Category:
Brand: MTools Tec

Mifare Classic S70 4K Key Fob with 4 Byte Writable UID.

The RFID Readers supporting this Key Fob are PN532, ACR122U, iCopy-XS, and Proxmark3 X.

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Specifications

Protocol

UID Length

Memory

Device Support

, , , ,

Software

Android App

iOS App

UID Changeable

Yes (Backdoor Command)
Working Temperature

-20°C-70°C
Protocol

UID Length

Memory

Device Support

, , , ,

Android App

iOS App

This is the 4 Byte UID changeable Mifare Classic 4k size key fob.

The UID can be modified ONLY with an external device (PN532, PCR532, ACR122U, Proxmark3 X, and iCopy-XS).

The UID cannot be changed with NFC on Android or iOS devices.

Command to Change UID

By All-in-one PN532 or PCR532

The latest features of the MTools Lite app support modifying the UID of the Gen3 7 Byte S70 4K card via Bluetooth PN532 Reader.

MTools Lite App can be downloaded from Play Store and App Store.

The PN532 Reader can be customized with the Bluetooth module. See the tutorial below to know how to make PN532 work with Bluetooth.

By Proxmark3 X or iCopy-XS

hf mf gen3uid --uid 11223344556677

By ACR122U

Windows Program Download Link: PCSC_Mifare_Secure.

Notice: Google Drive may recognize the PCSC Mifare Secure program as a virus cause it can detect the USB devices which it’s necessary to connect the reader. Absolutely it’s a clean and powerful program. Download the zip file with the browser on PC.

2 reviews for 4 Byte UID S70 4K Magic Key Fob

5.0
Based on 2 reviews
5 star
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4 star
0%
3 star
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2 star
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1 star
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1-2 of 2 reviews
  1. David Lee
    Reviewer

    I’ve tried other key fobs before, but this one is by far the best. The 4 Byte UID and ACR122U compatibility make it a top choice!

    (0) (0)
  2. John Smith
    Reviewer

    This key fob is great! The 4 Byte UID feature is a huge plus. I was able to easily program it using my ACR122U reader.

    (0) (0)
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How to deliver the virtual products?

The virtual products are delivered by email in time when order with only virtual products.

We offer both standard and expedited shipping options for our customers. The delivery times may vary depending on the shipping address.

Yes, once your order has been dispatched, we will send you a shipping confirmation email with your tracking number. You can use this number to track your shipment’s progress.

The delivery time varies depending on your location and the chosen shipping option. Typically, it takes about 5-10 business days for standard shipping and 2-5 business days for expedited shipping.

Shipping is usually available to all parts of the world. However, restrictions may apply to certain countries or regions due to international laws or shipping carrier limitations.

If you haven’t received your order within the expected delivery timeframe, please contact our customer support team. We will help to track your shipment and provide updates.

If your order arrives damaged, please contact our customer support immediately. We will initiate the return process and take necessary steps to rectify the situation.

Depending on the status of your order, it may be possible to change the shipping address before the package dispatched oversea. Please contact our customer support as soon as possible to request changes.

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RFID Reader

All-In-One PN532

$19.99 – $49.99
4 Byte UID S70 4K Magic Key Fob
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