Welcome to our store！</br>1、Support Protocol: The RFID reader module supports the standard ISO, IEC14443A protocol, professional manufacturing, high performance. 2、Communication Methods: The module supports 3 kind of communication methods, include USB, UART, TTL, and RS232, to meet different needs. 3、Fast Card Reading: The working frequency is 13.56mhz, the induction distance is about 0‑5cm, fast card reading time, about 0.2s. 4、PCB Material: The IC reader module is made of selected PCB materials, reliable in use. The main board has a micro USB communication interface. 5、Suitable for DIY Card Reader: The card reader module is a low voltage, small size contactless card reader module, suitable for DIY production. <p class="wang-edit-text"><p class="wang-edit-text"> Item Type:&nbsp;Card Reader Module Material: PCB Applicable Card: IC card Induction Distance: Approx. 0-5cm/0-2in Working Frequency: 13.56MHZ Card Reading Time: 0.2s Support Protocol: Standard ISO, IEC14443A protocol Communication Method: USB, UART TTL, RS232 <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Module Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>