Linksys Official Support - WRT1900AC Downloads
www.linksys.com › us › support-articleWRT1900AC Downloads The hardware version is located beside or beneath the model number and is labeled version, ver. or V. If there is no version number beside the model number on your Linksys product, the device is version 1. If you still have trouble finding your version number, see the complete article to learn more. Select your hardware version: