Terminology first. The WNDA3100v2 USB adapter does have "N600" as part of its name. So, we are talking about the USB wireless adapter only.
I have a WNDA3100v2 and it was a battle getting it set up. It is a dual-band "N" adapter when used in Windows, but, in PCLinuxOS, it failed to connect to my dual-band/"n" router at anything above "G" frequency and speed, so I have not been using it. To be clear: if the router was set to anything above 54 Mhz it would not connect.
I mentioned that because while you may have better success than I did, you may become frustrated if it won't connect to a router (and my dual-band "N" router was a Netgear product, also using the "N600" name.)
And, if you have a Windows computer available, you can get the drivers off the CD, but those did not work for me. What worked was the driver I mention in the other thread. However, I believe that the "ndis_bcmwl.zip" driver in kalwisti's second link: http://tinyurl.com/7o9arte
is the same driver.
The other download on that page is is for Atheros USB adapters, so it's not for the v2. (I think the v1 was called N300 and used the Atheros chip/driver.)
So, here's my previous thoughts on the subject.http://www.pclinuxos.com/forum/index.php/topic,110842.msg946494.html#msg946494
I'll add that when I set up the WNDA3100, I was using ndiswrapper-1.55 which had other problems, so, a newer version may work better (or worse.)