For its newsletter subscribers only, newegg offers the ZyXEL Powerline AV 4-Port Gigabit Ethernet Switch bundled with a ZyXEL Powerline AV Gigabit Adapter for $158.99. Coupon code "EMCNGHN54" drops it to $99.99. With free shipping, that's the lowest total price we could find by $20. This adapter plugs into wall power outlet to expand your home network without having to run Ethernet cables through your house. It supports up to 500Mbps data transfer rates. Offer expires March 21.