The Linksys EA7400 Max-Stream™ AC1750 Gigabit Router is a 3x3 802.11ac dual-band Smart Wi-Fi router with one USB 3.0 and one USB 2.0 port.  It supports data rates of up to 450 Mbps on 2.4 GHz and 1300 Mbps on 5 GHz networks.

This router comes with three (3) external detachable dual-band dipole antennas for enhanced communication, better coverage and range. 

The Linksys EA7400 has Beamforming technology on both bands which help improve the quality of video streaming and other bandwidth and latency-sensitive transmissions.  With this technology, more data reaches the targeted device instead of radiating out into the atmosphere since Beamforming-supported devices focus their signal toward each client.  You can increase throughput and range by using multiple antennas in which data is sent and received.

https://www.linksys.com/support-article?articleNum=47083