If you're looking to build a new high-speed wired or wireless network for your McMansion or inner-city penthouse apartment, then you're flush with choices -- and any modern Wi-Fi routers or modem-router will do a very good job. Routers are getting faster all the time, though, and Linksys has a new range that should be more than enough for even the largest and most technologically-advanced home -- including a new router capable of wirelessly broadcasting 20 streams of high quality 4K video simultaneously, at a price $150 cheaper than the competition.