[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. [ 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. [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. [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. Colour: blue Material: plastic shell Size: 6x2.5x2cm Note: cable needs to use a super six network cable, pure copper (single strand), multi-strand cannot be used, five types are not, TX is the transmitting end, RX is the receiving end, if cable is used, it must be positive Marking 19+1. cable is within 30m, no display: you need to select copy or widen in the display settings. The resolution is 720P, but it does not reach 1080P: you need to adjust the resolution in the settings ( cable is all copper, single-strand) Compatibility issues: Does not support HDCP, and some Blu-ray machines, etc. Package Contents: 4 x to ethernet adapter Only the above package content, other products are not included. Note: Light 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.