BNC started out originally for military use only but has gained a good reputation in the commercial market for audio and video usage. In commercial situations, it is typically used to replace RCA composite connections. In home use, you might see it with security cameras. The adapters that FireFold provides for BNC will allow you to make a BNC wire out of a coax cable or other similar conversions. All of ours are nickel plated for corrosion and made to the meet industry standards. Nothing left to really decide besides how many you need for your project.