1. 2 pair as a complete functional module, without setting. 2. CAT-5e/6 cable can replace the cable to achieve long-distance transmission. 3. Follow the IEEE-568B standard. 4. The transmission distance can be up to 30 Meters per 1080p via CAT-6 cable. 5. Compact size; Signal rater up to 1.65 Gbps in support of 1080p display. Gender: Male-Female Application: Multimedia;Monitor;DVD Player;Projector;Television;TV BOX Feature: HDMI1.4 Type: 4K Extender Size: 6cm x 2.5cm x 2cm Color: blue Material: plastic, metal cable needs to use a super six network cable (pure copper and single strand), can not use multiple strands, five network cables are , 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. cable can reach 4K within 10m (Note: cable is all copper, single strand) Package Contents: 4 x Transmitter 4 x Receiver 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.