BNC Compression Connectors: These connectors for RG6 coax are primarily used to make BNC audio/video cables, including SDI, HD-SDI, CCTV, Siamese, and networking data. How It Works: Our compression-style coupler streamlines cable management and provides a solid connection with minimal setup, passing both 75-ohm and 50-ohm signals. Compatible With: SDI, HD-SDI, TVI, CCTV, networking, internet, intranet, security camera systems, alarms, monitors, surveillance, audio and video cables, radio and television systems, and many other technologies. Made to Last: These connectors are precision machined from corrosion-protected metals to provide a secure connection that passes signals smoothly, creating clear picture, sound, data, and communications. Smooth Connection: Solid internal materials and construction eliminate interference while providing clear audio, video, data, and other signals. Dimensions: 1.5 x 0.5 x 0.5 inches.