Coil 6 worked everywhere in my house and I installed a little home server rack. The smallest rack a home automation company had to offer was 13U, which is way too big for what I wanted to fit. in it and where it should fit on the wall. I have a 24 port unmanaged switch, a small HP Home Media Server, a cable modem and a router in this rack and I have free space. It attaches securely to the wall. The bad thing is that it doesn't use traditional server screws, you have to use those, but they were adequate for what I needed. However, it did NOT have enough screws and hardware to install all 8U. If you made 8 1U devices, you would need to find more of their screws.
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