UID Key card / UID keychain card / UID key ring card / UID epoxy RFID keychain
	 
	UID cards,the card can be repeatedly modified  1 S50 rewritable IC cards serial number ID number,the sequence number used to copy can modify the IC card 0 sector 0 modules of the  1 S50 blank card.Can be repeatedly erased,the real IC copy with blank cards.
	UID cards can be changed in 00 sector,namely can change the sequence number.The ordinary IC cards has been manufacturers solidification sequence number.Therefore,sequence number of IC cards some access control to use as identification cards,must use UID cards to clone copy.
	
		Also can make the blank cards.
 
	 
	Standard:ISO/IEC 14443A 
	Memory:8kbit 
	Frequency:13.56MHz
	Communication speed:106kbit/s 
	Read and write distance:2.5-10cm (related to the antenna size and card reader) 
	Reading and writing time:1-2ms 
	Working temperature:-20℃-+85℃(humidity 90%)
	Endurance:>100,000 times
	Data retention:>10 years
	Size:85.5×54×0.76mm,or customer specified size
	Packaging materials:ABS,0.13 copper wire 
	Packaging process:ultrasonic wave auto plant lines/Automatic Welding