125khz usb rfid reader,EM4100 desktop id card reader
$8.89
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1.Support EM4100/TK4100 Chip2.USB interface.3.Read Only4.Different output format.Please choose the right output format when you order.10D: such as "0040856638"10H: Such as "01026f6c8a"8D: Such as "07302208"8H: Such as "026f6c8a"
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