[ Extender]The transmitter and receiver are used in pairs, without setting, without external power supply. This adapter not only breaks the limit of cable transmission length, but also provides greater flexibility and convenience in cable construction. [Widely Used] Extender is to RJ45 Extender Adapter works for HDTV, Set-top Boxes, DVD, HDPC, , STB, HOME&Hotel Projector Data Monitoring Center, Large Conference Center. [High Efficient Transmission]The extender can extend video and audio signals simultaneously up to 30 meters/100ft by the CAT-5e/6 cables. High speed point to point output, ensures that the input and output is exactly same. [HD 1080P]The ethernet extender with 2.5Gpbs signal transmission speed, technology speaking can reach to 4k. Perfect support 1080P, but this section DOES NOT support HDCP. Support hot swapping. Plug and play. Colour: blue Material: ABS Size: 4x4cm Package Contents: 4 * Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.