Usage Tips:USB2.0 to RS232 Female DB9 Serial Cable,Connect USB Port on your Computer to your RS232 DP 9Pin Devices,USB Port is available with 1Mbbps date transfer rate.Note:If your RS232 Device is Female Port,you need get a DB9 RS232 Male to Male Converter or cable to be connected between your device our and cable's RS232 Port.Simple installation ,plug and play,Uses latest prolific PL2303 Chipset,Supports for Windows 10/8.1/8/7/Vista/XP//2000 /for Linux 2.4 or above /and for OS X 10.6 and above.Easy Connectivity,USB to RS232 adapter works with modems, ISDN Terminal Adapters, digital cameras, label writers, palm PCs, PDAs,cashier register,CNC,PLC controller,tax printer,POS, bar code scanner, label printer,and other devices with DB9 SERIAL ports.Please note that 1: not compatible with Cutting plotter 2:Not compatible with VGA 15 Pin Device.[Stable Data Transfer]: Tinned Copper Conductor and triple shielding the best data transfer rate. Powered by USB port, no external adapter required.[Drive Installed Needed]: Please install the provided driver via enclosed CD to enable this adapter cable.Connector Type: RS232, Usb 2.0Cable Type:USBCompatible Devices:Scanner, PC, Modem, PrinterColour:blackMaterial:Plastic + MetalPackage Contents:1 x USB to RS232 Adapter1 x CDOnly the above package content, other products are not included.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.