Bests & Worsts Reviews from Amazon

D-Link DIR-855 Xtreme N Duo Dualband Draft 802.11n Media Router Per another customer, here's the differences in the Extremes: The following will likely save you a couple of hours of research... The DIR-655 is single-band (2.4GHz). The DGL-4500 is dual-band (2.4GHz and 5GHz), however it only uses one band at a time. You choose which band, manually, in the configuration. It doesn't choose the best band in real-time, or anything like that. The DIR-855 is dual-band (2.4GHz and 5GHz) and uses both bands at the same time.