125 kilo, 175 Hz, 250 kg, 300 kg, 375 kg, 500 Hz, etc. Only support IC frequency: 13.56MHz. Can't be used with Mac, this file is only suitable for Windows. The default language is Chinese, but you can choose English or directly select English in the system settings when starting. The blue card is a 125kHz label, and the white T557 125kHz H-ID card is a blank label. They cannot read and write directly. You need to write the data first, and then copy it with the 125kHz RFID card.The blue 13.56MHz UID keychain (pattern 1) is the IC copy card, which can be read and write directly. All cards can be written and rewritten. Support most blank copy cards, including UID, FUID, CUID, ZXUID, EUID, ICUID, E5500, E5550, T5577, EM4305, EL8265, 5200, 7200, 8200. IC MF1 S50 TK4100 EM4100 is not supported. Support IC, MF1, S50, ID, TK4100, H-ID26, H-ID35, H-ID37, 125KHz-13.56MHz; support some T5577 encryption cards (this is a huge technology update. At presentCompletion of this work is more complicated, you need to access the card reader test). When connecting the computer: there is a disclaimer. Do not press "ok" button or any button on the card reader machine at this time.Enter my computer, find a mobile disk and copy another flash driver with the red logo's main software EXE to the computer.Double -click to open the software, it displays USB connections and click Start on the screen.It takes about 1-3 minutes.When it shows the successful Deconding, replace a blank card and copy it according to writing. Colour:As Shown Material:Metal+Plastic Package Contents: 1set * rfid writer 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.