Amazon.com: Bewinner 4G 3G External Antenna for Mobile Modem/Router/Signal Amplifier Repeater 4G Outdoor Antenna for Signal Enhancement-360 ¡ã Receive High Gain : Electronics
Amazon.com: DO 300Mbps 4G LTE Modem Wi-Fi Wireless Router for RV or Mobile Home with Strong Signal, USB Port and SIM Card Slot with External Antennas for USA/Canada/Mexico SIM Card : Electronics
Selecting an External Antenna for a GSM/3G/LTE Modem
Amazon.com: ZDTECH High Gain 10-12dBi External SMA Male/Dual SMA Male 3G 4G 5G LTE Omni Directional Outdoor Antenna for Mobile Cell Phone Cellular 4G/LTE/5G Router Modem Gateway(698-4000 MHz) : Electronics
Source Huawei 3G HSPA Modem 3G USB Dongle unlocked vodafone K4305 with external antenna on m.alibaba.com
Dual MIMO AT&T Beam NETGEAR 340U USB Modem BLADE Antenna w/Laptop Clip - AntennaGear, LLC
Source 7.2Mbps HSUPA HSDPA usb 3g modem Dongle with external antenna on m.alibaba.com
Amazon.com: 4G/3G LTE Antenna, 28dbi High Gain 4G 3G Network Ethernet Outdoor Signal Amplifier for WiFi Router Mobile for Huawei E398/E3276/E392(SMA Male) : Electronics
3G 4G LTE Router Modem Aerial External Antenna 35dB with TS9 / CRC9 / SMA Connector Cable for
Wholesale 3M Cable 3G 4G LTE Antenna External Antennas for Huawei ZTE 4G LTE Router Modem Aerial with TS9/ CRC9/ SMA Connector From China
Amazon.com: 11dBi High Gain 3G 4G/LTE 5G Modems Waterproof Fixed-Mount Panel Dual Polarized MIMO Antenna with Dual 5 Meter Cable SMA Male Connector for Verizon AT&T T-Mobile Sprint Cellular 4G LTE Router,
3M 2G 3G 4G LTE Router Modem Aerial External Antenna With TS9 / CRC9 / SMA Connector Cable For Huawei ZTE 4G LTE Antenna - AliExpress
3G 4G LTE Router Modem Aerial External Antenna 35dB with TS9 / CRC9 / SMA Connector Cable for Huawei ZTE Modem