Hi! First post here. Looking at buying the D-Link DIR-628 RANGEBOOSTER N Dual Band Wireless Router (2.4 and 5 GHZ).... What is the complimentary D-Link USB/Desktop/Laptop adapter card ? All the cards I see (DWA-642, 643) on the D-Link site are single band only (2.4GHZ ?)... Does D-Link offer a Dual Band card to allow a purchaser of the 628 to take advantage of the 2.4 and 5 GHZ Dual Band modes ? Thanks so much