Does not stay inserted on some of my devices (both Samsung DVD players, two HP laptops) .
Netgear switch, two Samsung TVs and two other HP laptops OK.

Took a bit of practice (ruined 3 connectors) getting connector to correctly attach to stiff Cat7a cable.

Had to remove most of restraining strap as Cat7a is very thick.

These Jack's are very easy to use correctly and made of high quality materials.

It is very difficult to connect round cable to a flat plug: for those that have tried. This plug is the answer as it makes it much easier then it use to be. It definitely takes practice putting this on as there are no instructions and the wire have to be cut concisely otherwise the crimping cap won't recess completely. My only complaint is the plugs are a little wide and can be difficult in adjacent slots.