7 Byte UID S70 4K Magic Key Fob

Name: 7 Byte UID S70 4K Magic Key Fob
Brand: MTools Tec
SKU: MT-KF-S70-4K-7B
Price: 4.79 USD
Availability: InStock
Rating: 5.00 (3 reviews)

Rated 5.00 out of 5 based on 1 customer rating

3 reviews

$4.79

Mifare Classic S70 4K Key Fob with 7 Byte Writable UID.

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

This is the 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.

How to PN532 work on Bluetooth for Android and iOS

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.

Specifications

Protocol	ISO14443A
UID Length	7 Bytes
Memory	4KB

Weight	0.05 kg
UID Changeable	Yes (Backdoor Command)
Working Temperature	-20°C-70°C
Protocol	ISO14443A
UID Length	7 Bytes
Memory	4KB

3 reviews for 7 Byte UID S70 4K Magic Key Fob

5.0

Based on 3 reviews

5 star	100	100%
4 star		0%
3 star		0%
2 star		0%
1 star		0%

1-3 of 3 reviews

Samantha Johnson
Reviewer

March 7, 2023

Rated 5 out of 5
I have been using this key fob for a few weeks now and I am very happy with it. The gen3 chip is really fast and the acr122u works perfectly with it.

(0) (0)
Samantha Johnson
Reviewer

March 7, 2023

Rated 5 out of 5
I have been using this key fob for a few weeks now and I am very happy with it. The gen3 chip is really fast and the acr122u works perfectly with it.

(0) (0)
Simon
Verified owner

August 11, 2022

Rated 5 out of 5
Verified review - view original
Great support

(0) (0)

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Subtotal	$79.99
Total	$94.19

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