This Cat.6 coupler enables the joining / extending of 2 x Cat.6 RJ45/UTP patch leads. This is a straight through coupler.
Cat.6 Keystone Mount Through Coupler
This is quick and easy to install, and requires no termination, merely plug in RJ45 cables on both sides. It allows cables to be easily to be extended with no need for punchdown. These are panel mounted.