This adapter converts a patch cable into a crossover cable. It can also be used to change a crossover cable into a straight through patch. This crossover adapter has been used for industrial applications, computer technicians who are tired of carrying around too many cables, as well as everyday users to have who want to network two computers together without a hub. A few of the many applications for this adaptor, when combined with a standard straight-wired patch cable are: Networking PC to PC, PC to Xbox, Cable Modem to Switch/Hub, Switch/Hub to Switch/Hub.