"In other terms, what's the throughput on the ethernet switch level? Does it follows the same WAN - LAN routing throughput?"
Flavio,
I got this router last week and did some tests. My previous (and still current, I'll explain later) router is a dir-655. The reason I bought the 4200v2 is that I wanted faster wifi with my 3 stream laptop, 5 ghz, and usb storage. Unfortunately, my NAS is old and is the bottleneck when using it. But, I did connect my laptop straight to the router. Both routers were able to write a 2.5 gig file at around 52-61 MB/s (I ran it a few times). The source was running xp and network utilization was around 53%. The laptop is running win 7. There are alot of variables in achieving higher throughputs but I don't think this router would NOT be capable of getting higher transfer rates. While I'm not sure you would get your desired rate of 100 MB/s, I think somewhere in between is definitely possible. I wouldn't worry about it if that's your concern.
I was initially looking at the wndr4500 and then the rt-n66. It seems like both routers have some small issues and the latter is hard to find, although I'm still considering it. The 4200v2 came with a free laser printer which I would sell to offset its high price. However, the range and speed on the 2.4 band was no better than my dir-655 and I could not get the usb storage working even after contacting their tech support. My NAS is basically used as a backup device and not a file server so having the usb for music/video is important to me. I was trying to attach a 1TB WD Elements drive to it and, eventhough it recognized it sometimes, I could never create a share.
ric
