Features: HD video balun converts video signals into balanced signals for standard Cat-5 unshielded twisted pair transmission. With excellent transmission performance, it can be used in video surveillance, video conferencing, and other applications. Transmits four channels of video simultaneously over an 8-core Cat-5 twisted pair cable. Helps simplify wiring and reduce cable usage. Compatible with all HD-CVI, HD-TVI, and HD-AHD systems. Supports up to 250m for 1080P AHD cameras, up to 450m for 720P CVI cameras, up to 250m for 1080P CVI cameras, up to 250m for 720P/1080P TVI cameras, and up to 320m for 720P AHD cameras. Supports NTSC, PAL, and SECAM video formats. No power required. Provides 60dB crosstalk and noise immunity. Built-in transient suppression protection. Specifications: Condition: New Item Type: Video Balun Color: As shown in picture Material: Metal Compatibility: HD-CVI, HD-TVI, HD-AHD Video Formats: NTSC, PAL, SECAM Frequency Response: DC to 60MHz Attenuation: 0.5dB CMRR: 60dB Surge Protection: 4KV ESD: 8KV Impedance: BNC: 75 ohms, RJ45: 100 ohms Working Temperature: -10°C to 70°C Storage Temperature: -30°C to 70°C Humidity: 0–95% Required Cable Type: Unshielded Cat-5 or higher twisted pair cable (Use standard Cat-5 or higher; cable quality directly affects transmission image quality and distance) Characteristic Impedance: 100 ± 20 ohms DC Loop Resistance: 18 ohms / 100m Differential Capacitance: 62 pF (maximum) Connection Method: Use modular plugs with Cat-5 unshielded twisted pair wire following TIA/EIA-568B standard, connect modular plugs to RJ45 socket, and connect coaxial cable to BNC. Package Includes: 1 x 8CH Passive Video Balun 1 x Manual Note: The new or old version of this product may be shipped randomly. Please ensure you are comfortable with this before ordering.