The WRT family of Linksys routers used to be extremely popular and, despite being largely discontinued a decade ago, continues to sell one of the models. The popularity and longevity of the WRT routers is due to its open-source firmware that allows hackers to create custom software builds. However, the only model that is still being sold, the WRT54G, still uses the outdated wireless-G. Fortunately, Linksys will be reviving the beloved line of routers and adding dual band 802.11ac Wi-Fi.