TP-Link N300 Wireless Extender, Wi-Fi Router (TL-WR841N) - 2 x 5dBi High Power Antennas, Supports Access Point, WISP, Up to 300Mbps Wireless Routers - Newegg.com
Techzone - TP-LINK TL-WR841N V14 300Mbps Wireless N Router
TL-wr841n v14 image (bounty?) - For Developers - OpenWrt Forum