Using FT232RNL chip solution, high-speed communication is stable, reliable and has good compatibility<br> Onboard ( ient voltage suppressor), which can effectively suppress surge voltages and ient voltages in the circuit, and protect against- and static electricity<br> On-board self-restoring fuses and protection diodes stable current and voltage output, prevent overcurrent and overvoltage, and improve impact resistance.<br> Onboard RS232/485 communication switching circuit, users can switch the communication type by toggle switch<br> Built-in RS485 output terminal 120R resistor, which can be enabled by toggle switch for flexible switching<br> There is an external LED indicator light for easy viewing of power supply and signal ceiver status.<br> Using ABS environmentally friendly shell, small size, portable and easy to use, high cost performance<br> Due to different batches, the appearance, color and printed words of the product , which not affect the use.<br> Colour:Black<br> Material:Plastic<br> Package Contents:<br> 1 * USB to RS232/485 converter<br> 1 * USB<br> 1 * screwdriver<br> Only the above package content, other products are not included.<br> 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.