Specs:
The Linksys WRT1900ACS Dual-Band Wi-Fi Router with Ultra-Fast 1.6 GHz CPU is a simultaneous dual-band 3 x 3 Gigabit router with one USB 2.0 / External Serial Advanced Technology Attachment (eSATA) combo port and one USB 3.0 port that supports a maximum speed of 600 Mbps on the 2.4 GHz band and up to 1.3 Gbps on the 5 GHz band. The Linksys WRT1900ACS can create four simultaneous yet separate Wi-Fi:

Linksys hemsida:

https://www.linksys.com/wrt1900acs-dual-band-wi-fi-router-with-ultra-fast-1.6-ghz-cpu/WRT1900ACS.html

Info & Review:

https://www.smallnetbuilder.com/wireless/wireless-reviews/linksys-wrt1900acs-dual-band-gigabit-router-reviewed/