Dell Small Business offers the TP-Link 300Mb/s 802.11n Wireless Universal Range Extender, model no. TL-WA860RE, for $19.99 with free shipping. (B&H Photo Video, Amazon, and several other vendors, have it for around the same price, charging pennies less for Prime members.) That's tied with our mention from a week ago and the lowest total price we could find by $5. It features a power outlet passthrough, Ethernet port, 64/128/152-bit WEP, and WPA-PSK / WPA2-PSK encryption.