Re: [Cable] Best modem recommended by dslreports experts? [FR/EN
>The modem can only be set horizontally and the hot spot is under it, so it's not well ventilated.
My old Cisco ATA can only be place horizontally and the top is intentionally designed to "discourage" stacking. I found a old huge transistor heatsink with a U shaped channel opening which just happens to be the exact thickness of the ATA. It is standing vertically using a lot less space. The cooling is also much better as it now has double the surface area. The heatsink acts as a weight only.