"This router is a little bit special. The Linksys WRT610N is a 'true' dual-band draft-n router. This means it can simultaneously broadcast a draft-n signal on both its 2.4GHz and 5GHz radios, in theory doubling its bandwidth. The 5GHz frequency promises better wireless signal strength, range and stability. And in the UK, where 802.11a is rare, this band is free from clutter. If you want, you can reserve the 2.4GHz band purely for 802.11g or b/g/n duties. Naturally, it has four gigabit wired ports as well.
The dual-band Linksys WRT610N doesn't come cheap but this is an advanced-spec router, with USB storage and great performance. The dual-band feature is most useful for those with a mixture of 2.4 and 5GHz clients."