Provide better stability and compatibilitySupport for serial port debuggingSupports Win7/8/8.1/10/11, , Linux, Android and other systemsEasily see the working status, providing convenience for your programming and debuggingUART pin of for 40PIN can be connected through loose wireChip solution:FT232RNLHost interface:USBCommunication speed:300bps-3MbpsDevice interface:UARTUSB interface: Interface form: USB-A type Interface protection: Self recovery fuse, ESD static protectionUART interface: Interface form: 4PIN line loose SH1.0 3PIN anti fooling serial port interface protection: IO protection diode circuitIndicator light: PWR: Power indicator light, connected to USB, lights up when voltage is detected TXD: Send indicator light, lights up when data is sent from USB port RXD: Receive indicator light, lights up when data is sent back from device interfaceCable specification: PVC outer cover, wire length 1mDue to different batches, there may be differences in product appearance and printed text, which will not affect use.Colour:BlackMaterial:pvcPackage Contents:1 * Debugging lineOnly 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.