Hi! First post here. I'm ready to replace my venerable DI-604 and go wireless. I have a few pre-sales questions about RangeBooster N routers:
1) What exactly does the term RangeBooster mean - how much more range does a RangeBooster router have over a Wireless N router (e.g. DIR-615), and how does D-Link achieve this extra range?
2) Is it correct to say that DIR-625 is a single band router - 2.4 GHz only - while DIR-628 is a dual band router - selectable 2.4 GHz or 5 GHz?
3) What is the difference between the QoS featured in RangeBooster N routers (described as "intelligent QoS") and the QoS featured in the Wireless N routers?
4) Is it correct to say that DIR-628 supports Wi-Fi Protected Setup (WPS) and DIR-625 does not support WPS? I'm asking because I only see WPS described as a feature for DIR-628.
And finally...
5) I have desktop computers. Which is the preferable form of wireless adapter: USB (DWA-140) or plug-in card (DWA-542)?
Many, many thanks for your help.