100% New and High Quality. A pair as a complete functional module, with no configuration required. CAT-5e / 6 cable can replace the cable to achieve long-distance transmission. Follow the IEEE-568B standard. The transmission distance can be up to 30 meters to 1080P, 4K x 2K through CAT-6 cable. Suppot hot swapping. Plug and play. Signaling display of up to 2.5 Gbps in support of 1080p display. Compatible with HDCP. No need for extra power supply Product Name:TX Transmissor Product material:ABS&Metal Product color: black Product size:5.8cmx2.5cmx2.2cm Product weight:132g The network cable needs to use a super six network cable (pure copper and single strand), can not use multiple strands, five network cables are not available, TX is the transmitting end, RX is the receiving end, if cable is used, it must be a positive mark 19+1; The resolution needs to be adjusted in the display settings. The network cable can reach 4K within 10m (Note: the network cable is all copper, single strand) Package Contents: 8x TX Transmissor 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.