3pcs Mifare 14443A 13.56Mhz Antenna built in 3-5V TTL RS232 reader/writer module

Supports ISO14443A /MIFARE ,Mifare Classic1K,Mifare Classic 4K. 3 x Mifare Rfid Reader/Writer Module YHY502CTG. 3 x Mifare 1K PVC CARD. Mifare®Classic protocol. RS232(TTL) Interface. Complete Read/Write module with built-in transceiver antenna.

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