1. On-board resettable fuse and transient suppression diode, anti-overcurrent and overvoltage, anti-backflow, anti-static, shock resistance, stable and safe communication<br> 2. On-board IO protection circuit, anti-surge, stable and safe communication<br> 3. The onboard TTL serial port 3.3V and 5V level conversion circuit can switch the TTL communication level<br> 4. There are 3 LED indicators on the board, which is convenient to check the status of power supply and signal sending and receiving<br> 5. DC simple bull socket interface, plug and unplug, sturdy and , prevent reverse connection<br> Specification:<br> Product name: USB to TTL conversion module<br> Product Type: Industrial Grade USB to TTL Converter<br> interface: USB<br> Communication rate: 50bps~6Mbps<br> Device interface: UART<br> USB interface: interface form: USB-A type interface; interface protection: self- fuse, ESD electrostatic protection<br> UART interface: interface form: terminal; interface form: 8PIN foolproof interface; interface protection: IO protection diode circuit<br> Indicator light:<br> PWR: Power indicator, connected to USB, and lights up when voltage is detected<br> TXD: Send indicator, when data is sent from the USB port<br> RXD: Receive indicator, when data is sent back from the device interface<br> Compatible system: Support Win7/8/8.1/10/11, , Linux, Android and other<br> Product size: 53 x 23.5 x 14.6mm<br> Colour: black<br> Material: plastic<br> Package Contents:<br> 1 x USB to TTL conversion module<br> 1 x 8pin cable<br> Only the above package content, other products are not included.<br> 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.