MAYATOWN RF to RJ45 Converter Adapter BNC Connector RF Female to RJ45 Male Coaxial Coax Barrel Coupler Adapter

I have in front of me a BNC to rj45 adapter it's a twin pack and I'm fundamentally the purpose of this is to allow you to use a cable network tester to check it be and save using this these adapters so basically you'll see on one side we have a BNC connection which is here and in the other side we have a an rj45 connection basically there's our make two cannibals here so what is testing the outer and there's testing the core cable and I just creates a circuit time so what I'm gonna do here is we're just gonna show I have a BNC kept cable here I'm gonna bring it to focus very quickly so what I'm gonna do is I'm just gonna push this in and now I have cable BNC cable terminated here on both ends I wanna go to few peers with the network tester here I'm just gonna come along I'm gonna shove this in here put this into focus I'm gonna pull this in here have it on there I'm all to see is only n