My HP DV6T laptop is 2011 model and has Intel Centrino Wireless N hardware. Its wifi b/g/n certified. Dunno about its max speeds but that is what (70-144mbps) its connecting at with the R7000 router. Also my laptop can see and connect to the router only on 2.4Ghz Band. it is in the same room as the router about 10-12 feet away from it. There is also a Belkin wifi N router running next to it.
@thiggins, requesting you to see and reply, thanks !!!
I had an HP laptop with an Intel 2230 wireless N card in it.
Basically it was a 2.4 Ghz N device with bluetooth.
It was a 2 antenna dual stream device; hence, 300 Mbps max. Depending on how the router is configured, you will get max speed link rates of 144 Mbps, or 300 Mbps.
It is NOT a 3 antenna, 3 stream device; hence no 450 Mbps on 2.4 Ghz.
It was a good little card. Worked great.