10 Pairs Single port HD Analog Video Passive twisted pair Transceiver Max. Support Pixel: 8 Million Pixels (4K), Compatible with 5MP/4MP/3MP/720P/960P/1080P (1080P is 2 MP) --Material: ABS , PVC , Copper and Alloy --Efficient transmission and anti-interference --Appearance card slot, can be arranged neatly --Transmission signal : 1 channel --Anti-interference >60db --Package list: 10 pairs in a box Protection : --ESD: 1a contract discharge electricity level 3 ; 1b air discharge electricity level 3 Per: IEC61000-4-2 --Coaxial Cable Connector: 2KV (common-code) Per: IE 61000-4-5 --UTP Cable Connector : 2KV (different-code), 4KV (common-code), Per: IE 61000-4-5 Impedance： BNC Male is 75 ohms; UTP Cable us 100 ohms Note: --Please make sure that the same colors you use in one end are the same colors on the other end. --Don't use one with any other type of baluns. Both baluns must be a pair , otherwise don't work.