1CH CCTV Passive HD-AHD/CVI/TVI Video Balun Features Compatible with all HD-CVI, HD-TVI, HD-AHD and analog cameras Up to 450m for 720P CVI Cameras Up to 250m for 1080P CVI Cameras Up to 250m for 720P/1080P TVI Cameras Up to 320m for 720P AHD cameras NTSC, PAL, and SECAM video formats No power required 60dB cross talk and noise immunity. Compact size and easy installation Built-in transient suppression protection Technical specifications: Video Format HD-CVI/TVI/AHD, NTSC, PAL, and SECAM Frequency Response DC to 60MHz Attenuation 0.5dB typ CMRR 60 dB Surge protection 4KV ESD 8KV Impedance Coax, Male BNC 75 ohms Terminal Block 100 ohms Working environment Working Temperature -10? to +50? Storage Temperature -30? to +70? Humidity 0 to 95% Wire Type UTP CAT5, CAT5e, CAT6 UTP Connection Screw Terminal blocks Power No power required Case ABS Plastic Dimension 31mm*14mm*16mm(excluding connectors) Weight 45g/pair