A:Answer This should be able to attach 254 devices total. I have probably 32 or so devices in my "access control list" and they come and go as my kids come and go. If you need to attach wired devices, those come out of this same pool, which I assume is big enough for your purposes. There are 4 or 5 wired connections available on the router. For more wired connections, you'll need to add a switch, which I did.