Feature: The product supports usb2.0,Transmission speed: 12Mbps at full speed and 1.5Mbps at low speed.isolation between upstream and downstream port voltage: 3000 V DCsupport USB control , bulk , interrupt transmission, synchronous transmission/etcpower supply: from the USB port to the PC free drive, it is more convenient to useapplies to all communications used by software, plug and playtransmission medium: pair or shielded wireuse of the environment: - 40 to 85 , relative humidity of 5% to 95%Functions and pu12rposes:USB (Universal Serial Port, Universal Serial bus) bus is the most widely used on the computer at and the most convenient time for the new interface, USB because of easy to use, high speed, compared with other interface has significant advantages. the USB interface is not initially designed for industrial application, the application in of industrial automation control and data acquisition, especially for high security requirements of coal mining, chemical, industries, there is interference and potential risk of unsafe, even lead to disastrous consequences. And of USB isolation measures is to eliminate the potential danger, USB electrical isolation, can effectively eliminate the bus transient voltage or potential difference, avoid the circulation static, , power surge and ground when damage to the computer or device and lead to the data is not , and that dangerous sites in the coal mine equipment security isolation with the outside world, the security of the human body in applications, etc.Material: PCB+Plastic+MetalColor as shownPackage Contents:1 x USB IsolatorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.