As long as you can do everything you do on the desktop PC within ChromeOS, sure! You can't go wrong with any of the current Chromeboxes available today. Just double check to see how upgradable the model you're interested in will let you add memory. They almost always do, but better to be safe than sorry.
Is an ASUS Chromebox 5 a good replacement device for a desktop PC that has died?
As long as you can do everything you do on the desktop PC within ChromeOS, sure! You can't go wrong with any of the current Chromeboxes available today. Just double check to see how upgradable the model you're interested in will let you add memory. They almost always do, but better to be safe than sorry.
Thank you!