RJ45 to DB15-F Modular Adapter DB15F DA15F
This is the assemble type with all wires ready to be pushed into the appropiate spot on the DB15 Female Connector.
Female DB15 Connector

Female RJ45 Connector

RJ-45 Side. Pin Color 1 Blue 2 Orange 3 Black 4 Red 5 Green 6 Yellow 7 Brown 8 White