D-Link PowerLine 4-Port Gigabit Switch $20 + free shipping

Newegg offers the D-Link DHP-540 PowerLine AV 500 4-Port Gigabit Switch for $19.99 with free shipping. That's the lowest price we could find by $11. It features 128-bit AES encryption and powerline speeds of up to 500Mbps. Deal ends August 25.