Product Name:UTP 4 Channel Passive Video Balun Transceiver Impedance: BNC terminal: 75ohm;Connection terminal: 100ohm ;Frequency response: DC - 8MHz Size: 10.3 x 5.7 x 2.8cm ;Weight: 184g/pcs;# CMRR (Common Mode Rejection Ratio): 60DB # Working temperature: -10°C - 70°C; Storage temperature: -30°C - 70°C With working with passive transceiver and active transmitters allow signals transmission up to 330m and 1500m respectively. This 4 Channel Video Balun allows the use of a shared or existing cable plant. Video balun is to convert the video signal into the balanced signal applicable to be transmitted on common Cat-5 unshielded twisted pair wire with transmission effect, which can be applied in the occasions such as video monitoring and video meeting and can transmit four channels of video image simultaneously on an 8-core Cat-5 twisted pair wire. 4 Channel UTP Balun adopt differential signal transmission with excellent anti-jamming ability. Save project wire expenses. each a pair of twisted pair wire transmits one channel of video signal and one Full motion CCTV video at distances up to 330m when used with any passive UTP video transceiver. Up to 1500m with any active UTP video receiver. No power required. Built-in transient suppression protection. Applicable to NTSC, PAL, SECAM and CCIR systems Package Contents: 6 x UTP Passive Balun 6 x Manual Only the above package content, other products are not included. Note: Light reflection 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.