This is an excellent USB to 9 or 25 Pin adapter that is built around the every poplular and highly regarded FTDI Chipset. The cable supports High Speed USB 2.0 transfer. 

RS232 9 pin (DB9 - Male) and or 25 pin (DB25 - Male) adaptor with a 2 metre cable. You can use either the 9 Pin conenctor or the 25 PIN adapter to convert the 9 Pin connector into a 25 Pin

Allows you to connect devices which use an RS232 connector (9 or 2 Pin) to your PC or Laptop via USB. Works fine with Windows 7 as well as all other Operating Systems. 

Supports both USB 1.0 and high speed USB 2.0. Supports, Microsoft Windows 98 / 2000 / ME / XP/ VISTA/Windows 7 and Mac OS 8.6 or above, Linux 2.40 or above.

The serial port connections are the standard male type (9 & 25 pins, not holes) if you need to use this adapter with another device with male connections you will need a gender changing adapter.

Typical devices that this cables supports are:

• Modems

• PDA's

• Printers and label printers

• And more!

Featrues of the 9 & 25 Pin USB to Serial Adapater:

• Supports Rs232 serial interface DB9 and DB25
• USB 2.0 (compatible with USB 1.x also)
• Supports remote wake up and power management
• Suitable for PDA's and modems as well as a wide range of other peripherals that rely on RS232
• Manual and driver (for Win98) supplied on a full size CD