If your LTE or 5G router supports 4x4 MIMO external antennas, and you're looking to get the absolute best data rates, using a 4x4 MIMO external antenna is often the best option. Our 4x4 MIMO Panel antenna offers up to 9 dBi gain between 1710 and 2700 MHz, and 6 dBi gain between 600 MHz and 900 MHz.