Tenda A9 Wireless N300 Universal Range Extender

TP-Link TL-WPA4220KIT 300Mbps Wi-Fi Range Extender AV500 Powerline Edition(With 2 Extenders)

Tenda A3 150Mbps Wireless Range Extender

Hawkins HSB2 802.11g HiGain Signal Booster v.2