A pair as a complete functional module, without setting. CAT-5e/6 cable can replace the HDMI cable to achieve long-distance transmission. Follows the IEEE-568B standard. Transmission distance can be up to 30 meters for 1080p via CAT-6 cable. Compact size; signal rate up to 1.65 Gbps in support of 1080p display. Gender: Male-Female. Application: Multimedia, Monitor, DVD Player, Projector, Television, TV Box. Feature: HDMI 1.4. Type: 4K HDMI Extender. Size: 6cm x 2.5cm x 2cm. Color: Blue. Material: Plastic, Metal. The network cable must be a pure copper, single-strand Cat 6 cable; multi-strand or Cat 5 cables are not supported. TX is the transmitting end, RX is the receiving end. If an HDMI cable is used, it must be a 19+1 marked cable. Resolution adjustment may be required in display settings. Supports 4K resolution within 10 meters using a pure copper, single-strand network cable. Package Contents: 1 x Transmitter, 1 x Receiver. Only the above package content is included; other products are not included. Note: Lighting and display differences may cause slight color variation between the image and the actual item. Measurement error allowance is +/- 1-3 cm.