Features: 1.RS?232 Serial Connector: Connect RS?232 serial devices, such as modems or printers, using the USB standard widely supported in most laptops and desktops today. The USB serial adapter supports USB1.1 and is compatible with USB2.0 ports. 2.Supported System: The USB to Serial Converter Adapter is compatible with for Windows XP/Win7/Win 8/Win10 OS. Easy to install, simply install in seconds with a USB to serial 9 pin converter cable, plug into your computer. 3.Metal Shell and Flexible Cable: Industrial grade metal shell, stable and anti interference, stable transmission in harsh environments. The integrated and flexible USB2.0 cable is suitable for most installation scenarios. When including RS?232 (9 pin) and USB Type A, the total cable length is 100cm. 4.Scope of Application: Support various models of single chip microcomputer, single chip STC download, LED screen control card, MODEM, ISDN terminal adapter communication is suitable for computers or notebooks with USB ports. (Note: This serial cable does not support some plotters, cutting plotters, and tax control machines) 5.Easy Installation: No external power supply and physical drives are required. USB TO SERIAL CONVERTER CALBE communicates with different communication devices through the USB port, such as PC?PC, PC?digital camera, PC?PDA. development board. STC download. Among them, CH340 is a USB to serial conversion chip, which is very suitable for the interface between USB and PC at close range, instead of RS232 conversion, which makes the connection between PC and peripherals faster and simpler. specification:Item Type: Usb to Serial Adapter Product Material: Metal Product Type: 9 Pin Serial Port Conversion Cable Chipset: CH340 Use Interface: Standard USB2.0 Interface USB Interface Connected To The Computer, 9 Pin Serial Device, Can Not Be Used In Reverse Total Product Length: Approx.100cm / 39.4in Operating System: for Windows XP/Win7/Win 8/Win10 PackageList:1 x USB to Serial Adapter