Features:<br />If you have a newer computer you may not have a serial port on your PC while many devices still require them， such as older GSM phones， printers and barcode scanners.<br />Use this adapter to add a serial port (RS-232) to your computer using one USB port<br />Compliant with USB HID specification<br />WinChipHead CH340 chipset<br />USB bus powered<br />USB Rev 1.1 compliant<br />Supports RS-232 serial interface<br />Over 1Mbps transfer rate<br />Supports remote wake-up and power management<br />Supports Windows 98SE/ 2000/ ME/ XP/ Vista/ Windows 7 (32 &amp; 64-bit)<br />Driverless installation with Windows XP， Vista &amp; Win 7<br />System Requirements: Available USB port， 64Mb RAM or more， Pentium 233MHz or higher<br />Length: Approx. 80cm/ 31.50&quot;<br /><br />Package Included:<br />1 x USB 2.0 to Serial DB9 9 Pin RS232 RS-232 Adaptor Cable