Review on Uxcell Coaxial Connector Terminal Adapter by Marcus Hargrave

They are very convenient to connect my electronic design boards to test equipment with BNC connectors. At first I thought they might have a built in transformer for isolation, but it's a direct connection from ground and center pin to each screw terminal. There is a star deduction for the fact that the terminal of a plug is stuck and does not rotate. Still worth having a set of these.