USB 2.0 to 9/25-Pin Serial RS232 Cable Cord DB9/DB25 Adapter PC Desktop; Description£º If you've got older computer equipment and no cable to connect it, we've got the solution. This adapter set converts RS232 9-pin and 25-pin serial ports (DB9 & DB25) for connection to a USB port. The USB end eliminates tricky serial connection setup. Features£º 100% brand new! Compatible with USB Specification Revision 1.1 and 2.0. Work with RS232 Serial Interface (DB25 or DB9). Support Over 1Mbps Data Transfer Rate. Support Remote Wake-Up and Power Management. DB9 to DB25 Adaptor included. For use with computers without serial ports. Operating System Supported: Windows 98, Windows 98 Second Edition, Windows ME, Windows 2000, Windows XP£¬Windows 7£¬Windows8. Lightweight and compact, easy to install. Package Content£º 1 x USB to RS232 Serial DB9 9 Pin Cable 1 x DB25 Adapter 1 x CD No Retail Packing