D.O RFID TAG company
D.O RFID TAG company is a RFID card manufacturers & factory, professional RFID card manufacturers , NFC tags suppliers and RFID Wristband company in shenzhen china for 15 years — Source Quality Products and Enjoy Efficient Service.

UID writable mifare classic cards RFID card supplier

RFID Frequency
RFID Standard

What is the UID writable mifare classic cards  ?

UID writable mifare classic cards are used to duplicate Mifare Classic 1K access cards.  Usually Mifare Classic 14443A cards is unique identification  for each user, there are some instances where you may wish to clone a card and have multiple cards with the same UID and data.  For example access control with few users with no user having the ability to add new cards into the system.  Or for access control that has a user limit which has been reached.

For example, when you lost your access card or need another one, blank UID changeable cards come in handy. No need to register a new card, program this blank UID changeable RFID card to the UID of the lost card, and then you can get a new the same card.

Blank 13.56MHz UID Changeable Card is commonly made of PVC material, and the standard size is CR80 (84*54*0.8mm). It works exactly like the MF S50 or F08 card, with 16 Sectors and 4 Blocks each Sector. What makes it special is its Sector 0 Block Zero, known as Manufacturers Block, where the Chip UID is stored, can be reprogrammed to any UID you wish.

Our UID changeable  mifare card  are well made, free of burrs, scratches, flat & smooth. We support wholesale and customization, good quality, low price, and superior service.

UID writable mifare classic cards.jpg

UID writable mifare classic cards Description:

0 Sector 0 block can be modified

UID writable mifare classic cards

RFID 13.56MHz ISO14443A Induction

This UID writable mifare classic cards works the same as normal mifare 1k card.

Works exactly like the mifare classic card, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block 0 known as Manufacturers Block where the Chip UID is stored, can be re programmed to any UID you wish.

You need to use the professional software and card reader to modify and copy UID of the card.If you have not  professional software,and card reader. 

Popular applications: Loyalty / Ticketing / Identification / Access Control

UID writable mifare classic cards Advantage:

This is a perfect solution for a lost irreplaceable mifare 1k card, you don't need to re-enroll new mifare classic 1k card. Just program this new mifare classic card's UID to the UID of lost card then you have a new Exactly the same card.

 classic cards  Features:

User definable access conditions & password for each memory block

Organized in 16 sector with 4 blocks of 16 bytes each (one block consists of 16 byte)


Frequency: 13.56 MHz

Protocol: ISO14443A

Capacity: 1K bytes EEPROM memory  

Rewrite Times: 100,000 times

Read Distance: 0-10cm (Depends on the R/W device)

Material: PVC

Card Dimensions: 85x54x0.9 mm

UID writable mifare card.jpg

If you want to ask anything just fill in the form below and send us. We will contact you within 12 hours.

Write a review

RFID Products


MIFARE Classic 1K (MF1 S50) Contactless Smart card
MIFARE Classic 1K (MF1 S50) Contactless Smart card

NXP has developed the MIFARE MF1ICS50 to be used in a contactless smart card according to ISO/IEC 14443 Type A.

More >>