Review on BUD Industries JB 3954 KO Junction Knockout: The Ultimate Solution for Electrical Wiring Connections by Jeff Westra

I used this box when wiring my house for ethernet (to cover the cables going into the wall from the patch panel). It is very durable and worked perfectly with a few modifications. I had to drill a 2.25" hole in the back (because there were no cutouts on the opposite side of the opening, which is a downside) but otherwise no complaints - I don't think I'll ever replace it.