These are good desktops for general use, can support 3 monitors.
For 3 monitors, you’ll need to use two display port cables, and one vga. Use any adapters and you’ll end up with 2 monitors recognized.
Major weakness is the power supply unit… they tend to fail. Good news is they’re pretty easy to replace (3 screws) and are cheap.
Air intake fan tends to fail also, but are like $5 and easy to replace when they do.
I have been using this exact model at work for the past 7 or 8 years and can barely handle Windows 7 with double the RAM. For the money it’s a waste, you can get a far more powerful machine for a little more money that is brand new. The USB ports are flaking out and have to frequently unplug the keyboard and mouse and plug them back in to get them to work again. Wouldn’t be surprised if these units came from the company I work for since I work for a large corp where everyone used to use these.