Support USB extended 4-way TTL (UART) with hardware flow control, which can communicate at the same time and are of each otherThe on-board self recovery fuse and protective diode can the stable output of current and voltage, prevent over-current and over-voltage, and improve the impact resistanceOn board IO protection circuit, anti surge, anti-static, stable and safe communicationOn board TTL serial port 3.3V and 5V level conversion circuit, which can switch TTL communication levelHigh quality usb-b and DC simple bull socket interface, smooth plugging, firm and reliable, and prevent reverse connectionProduct parametersHost interface: USBDevice interface: UARTCommunication range: 1200bps-460800bpsUSB interfaceInterface form: USB-B type interfaceInterface protection: resettable fuse, ESD electrostatic protectionUART interfaceInterface form: 6PIN anti-reverse connection interfaceInterface protection: IO protection diode circuitMulti system compatibility support: win7 / 8 / 8.1/10/11, , Linux and other systemsMaterial:Metalcolour:BlackPackage Contents:1 x USB to 4CH TTL Converter1 x USB Cable1 x 6pin CableOnly the above package content, other products are not included.Note: Light 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.