Cat 5e: 3 stars, Cat 6: 2 stars (here is not entirely clear what is assessed, but would warn of the Cat 6)

After I was satisfied so far with the Cat 5e doses, I have one of the Cat ordered 6 cans because their diaphragm enables the closing of a (currently unused) port.
The screws on the housing are extremely stiff and so soft that they are nearly broken when outside turning with a normal phase tester - this is my first box where you need a Phillips-head for mounting, and the subsequent attachment of cover for flush mounting is extremely fiddly.

For flush better take the Cat 5e (the surface-mounted box is hardly used because the lateral plastic reinforcement across the entire depth are exactly where the cables come out of the can ;-()