http://www.bestbuybusiness.com/bbfb/en/US/adirect/bestbuy?cmd=catProductDetail&showAddButton=true&productID=BB10052320
Or a regular cable like this one?
http://www.bestbuybusiness.com/bbfb/en/US/adirect/bestbuy?cmd=catProductDetail&showAddButton=true&productID=BB10715711
Is there a difference?
The connector on the RS-232 module is a female DB-9 connector, and your serial port on your PC should be a male DB-9 connector.
Best Regards,