1M USB To TTL Cable Module 4P 4 Pin RS232 Converter Serial Adapter Cable Module CH340 Chip Converter Cable Line usb to ttl serial converter adapterFeatures:brand new and This is a newly designed product that uses the CH340 chip.The CH340 provides a convenient solution for connecting a RS232-like full-duplex asynchronous serial device to any serial bus (USB) host.The CH340G is perfectly for WinXP 98 7 8 systems and can emulate on most operating systems, allowing existing applications based on COM ports to be easily ported and USB connected without having to rewrited COM The port software applies a traditional COM port.The cable mainly used in MCU serial communication, can be used in 51SCM, ARM and other application scenarios.for Ideal USB debugs cord for Vendor ID re-write, router, set top box, firmware on hard drive, Specifications: Material:ABSColor:BlackLength:Approx. 100cm/39.37 inchesPackage Includes:1x Download CableNote:1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.