I decided to test the external hd with the 8500 Mrimgs and
it was textbook:

https://postimg.cc/FktWGxgh

https://postimg.cc/sBvTrLTV

https://postimg.cc/jwfvW7Vm

https://postimg.cc/tnt5kG4z

This is what the other external hd should be doing. If this
external hd can connect then why can't the other and I've
changed the Startech cases, plugs etc and hd's? It doesn't
make any sense?? It's like the backspace key and we've
tested everything for that. What the hell is causing this?

Why will the Patriot Key and the Mrimg external hd work
but not the other?

Robert