Amazon.com: Mini 3G / 4G WiFi Router, WLAN Hotspot RJ45 Micro USB Wireless Router Network Card Adapter USB 3G Modems for Most WiFi Device with USB : Electronics
Amazon.com: TP-Link N150 Wireless 3G/4G Portable Router with AP/WISP/Router Mode, Compatible with Select AT&T/Verizon/Sprint/T-Mobile USB Modems (TL-MR3040) : Electronics