"If you are trying to link several line cords together, or extending existing modular cable runs, Cables To Go's In-line Cat5e Coupler can help you make the right connection. The in-line coupler provides a female-to-female feed-through connection for easy cable hook-up. Capable of handling LAN speeds of up to 100Mbps, meets TIA/EIA 568A and Power Sum Certified, the Cat5e coupler will meet all of your performance requirements. Connectors: One RJ-45 Female to One RJ-45 Female. Type: Straight-Thru RJ-45 Cat5e. Designed For: Data Applications. Use: Extends the length of two Cat5e patch cables."