Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers. This wall plate features a female-to-female HDMI coupler, allowing you to connect an HDMI cable inside the wall to one on the outside. It is capable of full High-Speed operation and supports all HDMI features. It is gold-plated to ensure smooth, corrosion-free connections every time. The wall plate also includes a female-to-female Cat5e RJ45 coupler and a female-to-female Coaxial RF coupler, allowing you to connect Ethernet and Coaxial RF cables inside the wall to cables on the outside.