RCA Male to BNC Female Connectors: A clean and simple way to check, extend, adapt, or convert the connector type on any device that requires a RCA or BNC connection, including RG58, RG59, RG6, and RG11 cables. Compatible With: 75-ohm and 50-ohm wires, cables, and cords including SDI, HD-SDI, and CCTV. Works 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. Solid Construction: These connectors are precision machined from corrosion-protected solid 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.