http://www.dlink.com/products/?model=DWA-140
http://www.dlink.co.uk/?go=jN7uAYLx/oIJaWVUDLYZU93ygJVYKuJXStvhLPG3yV3oV4B6j6ltbNlwaaRp7jUkFj2onGQTo48EANr32KPgKEoRsO3Z
http://www.dlink.com/products/?pid=530
DKT-410 consists of one DIR-635 broadband router and one DWA-140 USB2.0 adapter. Do you want to connect wirelessly? Any of your selection is 802.11n. They will perform about the same. The rangebooster router needs to go with a compatible adapter for optimal speed. The compatible products are listed under "works with" on the product page at dlink.
If it's a laptop, selection #1 would be the best choice. If it's a pc, you might want to go with a PCI adapter. They're expensive at retail, but cheap on ebay. I've gotten 2 from ebay and one of them has been used for about a year. With my DIR-625.
The only caveat is that the routers operate in 802.11b/g/n. If you have a device like PDA/cellphone that's only 802.11b, you must set up the dlink to use b/g. Then you lose n. To use n, you must set up router to use only n. See the catch 22. A solution is to get a 802.11b/g router ($20 ebay) for cheap and plug it into your existing n network.