Product Name : RFID Card,125Khz Material : Plastic, PVC. Standard : EM4200,EM4100 Reader Distance : 5-12mm. Compatible with all ID door access devices or ID reader. Contactless transmission of data,Only can be read,can't be rewritten,or used to copy other RFID cards. New (2) from $43.95 & FREE Shipping.RFID Cards (Radio Frequency Idude LF RFID cards(125Khz), HF RFID cards(13.56MHZ), and has advanced equipment, high quality materials, exquisite workmanship, and a focus on supplying high quality RFID Cards aspetitive …125KHZ RFID ID Card Reader can support Read EM 4001,EM4200 orpatible cards/ the same time,it can read EM4100 TK4100 ID cards data,then copy to T5577 writable ease attention it support window system only!it doesn't support any HID cards!!! Plug and play,with USB interface desktop 125khz RFID reader/writer .RFID Cards (Radio Frequency Idude LF RFID cards(125Khz), HF RFID cards(13.56MHZ), and UHF RFID cardsMHZ). We offer the most popular RFID chip technologies, such as the MIFARE, FM1108, TK4100, UHF (Alien Higgs-3, H4, Ucode Gen2, Ucode HSL, Monza 4, G2XM, G2XL) & etc.