OdiySurveil(TM) 8Channel HD Passive Video Balun Transceiver,RJ45 BNC Video Transmission for 720P/1080P HD-CVI/TVI/AHD CCTV Camera System Casing Material : metal shell with pure copper BNC connectors; Product Name : 8 Channel Passive HD Video Balun; Port : RJ45 BNC;Transmission Distance: HDCVI 720P:400m/ 1080P:250m, HDTV 720P/1080P:250m, AHD 720P:250m/1080P:200m; Operating Temperature:-10C-55C, Storage Temperature:-20C-70C;Humidity:0-95%(non-condensing); Applicable Range : NTSC, PAL, SECAM and CCIR Systems OdiySurveil(TM) Brand product with the best quality and more efficient signal transmission,do not compare with those junk materials. Dimension:7.1"x 2.0"x 1.0"(L*W*T);Weight:380g;