125KHz / 13.56 MHz, support IC / ID dual frequency replication, support NFC tags. Mainly used for access control field. When you connect this product to a computer, you can find a U disk come out, software is saved inside. Run software and connect reader with your PC properly, the program show the reader's model number when connect properly. Left side is 13.56MHz card (IC card) area, and right side is 125KHz (ID card) area, you have to choose the right side. In the package, Our 5 white cards can copy 125KHz cards, and 5 blue fobs are used to copy 13.56MHz cards. ①Put your card on the card reader, for 13.56MHz card, Click "start decoding", for 125KHz card, click "Read" button. ②The software scan and display the card number, sometimes it may need to wait for decoding completely. ③After reading out the data, choose the right copy card or fob from our package, put it on the reader and click Write button to write data to card. 1.2 meters length USB transmission line connected to the device, respond immediately, no need to install a driver, quickly read the card number. Support IC/ID dual frequency replication Free driver, no need to download software installation Comes with software, no internet download required Supply voltage:regulated 5 V DC Working frequency:125KHz/13.56 MHz Smart card support:Mainly for access control cards. uitable for ID125KHz, 8800, 5200, 4305, 5577, 8265 etc. UID FUID CUID UFUID IC Half Encryption, IC Full Encryption, etc. Colour:Black Material:ABS Size:108(L)x68(W)x12(H)mm Package Contents: 2 x Card reader 2 x USB cable 10 x T5577 white cards(used to copy 125KHz cards) 10 x UID blue key fobs(used to copy 13.56MHz cards) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.