The HDMI - can fulfill all expectations and matches the standard switches, for example, to Busch -. Jaeger with the TAE - REFLEX SI cover. As wallbox Although enough the normal depth of 45 mm, but because of the thick shielded HDMI - cable in the wall, I would have a 60 mm deep flush - can recommend. Then the HDMI leaves - can after installation even better turn in the right position (horizontal). For the 20 Screw you need a matching small screwdriver. Unfortunately, the slots in the screws is not very deep, so that the driver slightly slipping. Phillips-head screws would be a bit better, but it goes that way. You must be between the terminals - and the PIN - no different:..... The terminals - No is up to No. 9 in synchronism with the PIN - No. Because the terminals - No. 10 is occupied by the screen, shall apply from there: Terminals - No PIN = -. No. + 1. PIN -.. No, but corresponds to the standard assignment of HDMI - connectors, ie PIN - No HDMI -. Dose corresponding PIN - No HDMI -. plug. All right? Although in the wall permanently wired HDMI - cable is 10 meters long, we needed no HDMI - Repeater. The HDMI - Dose is highly recommended.