UID S50 1K 13.56Mhz Changeable Writable Keyfob RFID Comic Pattern Waterproof Keychain Badge Token Tag Access Control Card 1pcs |

UID S50 1K 13.56Mhz Changeable Writable Keyfob RFID Comic Pattern Waterproof Keychain Badge Token Tag Access Control Card 1pcs

Description:
0 Sector 0 block can be modified
UID Changeable S50 Smart IC Card
RFID 13.56MHz ISO14443A Induction  (High quality Fudan chips made in China, fully compatible )
This card works the same as normal ic cards. 
Works exactly like the S50, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block Zero known as Manufacturers Block where the Chip UID is stored, can be re programmed to any UID you wish.
 
It's advantage
This is a perfect solution for a lost irreplaceable ic Cards ID, you don't need to re-enroll new cards. Just program this new 
UID to the UID of lost card then you have a new Exactly the same card.
 
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) 
 

Specifications:
Frequency: 13.56 MHz
Capacity: k bytes EEPROM memory  
Rewrite Times: 100,000 times
Read Distance: 0 ~ 10 cm(depends on the R/W device) 
Material: PVC