This Cat6 Crossover adapter can be used to connect two computers without using a hub, switch or router. Also useful for converting any standard RJ45 patch cable into a crossover cable. Avoid carrying multiple cables by using this adapter.
An RJ45 adapter has many uses. You can extend the length of an existing cable split a data or phone system line turn a DB style connection into an RJ45 or vice versa.
What adapter do I need to extend the cable for my internet?
Ethernet cables are straight pinned. You would need an inline coupler that is straight.