Newegg offers the Linksys Powerline AV200+ Wireless N300 Network Extender Kit for $58.99. Coupon code "EMCRGBF43" drops the price to $19.99. With free shipping, that's tied with our April mention and the best price we could find today by $37. The adapter kit allows you to use the existing power outlets in your home to expand the coverage of your wired and wireless network. Features include 802.11n wireless, data transfer speeds up to 200Mb/s, an Ethernet port, and 128-bit AES encryption. Deal ends June 21.