
With speeds up to 500 Mbps, these NETGEAR Powerline 500 Essentials Edition XAVB5221100PAS Ethernet adapters extend blazing-fast Web access to a wall outlet. The Push-and-Secure design lets you make sure your network is safe with just a touch.
Q: Is it compatible with comcast?
A: Yes it is comparable with comcast
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Q: What does it mean if middle light is orange?
A: You don'the have a good connection, all the lights should be green. Check your cables.
A: One adapter that plugs in near router. One adapter for the room that needs boosted signal. Additional units can be added that can piggyback from primary adapter
Q: do you have to unplug after use or will it power down on its own?
A: Nothing keep it plugged.
Q: compatibility wit netgear powerline 500 nano
A: Yes this would be compatible, but I think you would not get the 1200 mbps speed reputed this has (I doubt anyone will). Max speed should be 500 mbps for all your units (Nano and 1200 mbps).