Hi Pedro, The recommended users support for the Cisco RV340W is up to 50 users at 2.4 GHz and 124 users at 5 GHz simultaneously. Cisco RV340W is an Integrated 802.11ac WLAN access point with 4 fixed external antennas (Wave 2 MU-MIMO).For more information about the Cisco RV340W specification, you can check the datasheet of the device in the link below:
http://www.cisco.com/c/en/us/products/collateral/routers/small-business-rv-series-routers/datasheet-c78-739257.html

Also, for any assistance regarding your inquiry, you can reach out to the Cisco Small Business Presales team by sending email to ask-eng-small-business@cisco.com