Groupon offers the ZyXEL HomePlug AV2 Gigabit Powerline Adapter Starter Kit 2-Pack, model no. PLA5206KIT, for $69.99. Coupon code "TRIPLE" cuts it to $62.99. With free shipping, that's $17 under last month's mention and the lowest total price we've seen. (It's a current low by $23.) This adapter starter kit is backwards compatible with AV1 adapters and plugs into wall power outlets to expand your home network without running Ethernet cables through the walls. Deal ends March 16.