RJ45 8P8C Modular Network Inline Cat5e Ethernet Coupler(4 Pack) Latch Female Coupler 4 colors - Red/Yellow/Blue/Ivory Network Jack Cat5e 8P8C In-Line female to female coupler RJ45 Cat5e Ethernet cable coupler has 8 pins for RJ45 connector 4color Configuration - Red / Yellow / Blue / Ivory Reverse couplers reverse the right to left order of the pins inside the connector Great for extending ethernet connection by connecting 2 short network cables together.