4 Byte UID S70 4K Magic Key Fob

Name: 4 Byte UID S70 4K Magic Key Fob
Brand: MTools Tec
SKU: MT-KF-S70-4K-4B
Price: 4.79 USD
Availability: InStock
Rating: 5.00 (2 reviews)

Rated 5.00 out of 5 based on 1 customer rating

$4.79

Mifare Classic S70 4K Key Fob with 4 Byte Writable UID. The RFID Readers that support on this Key Fob: ACR122U, iCopy-X and Proxmark3 X.

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

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

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

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.

Command to Change UID

By Proxmark3 X or iCopy-XS

hf mf gen3uid --uid 11223344556677

Specifications

Protocol	ISO14443A

Basic Attributes

UID Length	4 Bytes

UID Changeable	Yes (Backdoor Command)
Working Temperature	-20°C-70°C
Protocol	ISO14443A
UID Length	4 Bytes

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