It’s a refurbished Dell OptiPlex 7010 with two displayports and one VGA port. It seems to handle two monitors using any combination of ports, but always declares a third monitor inactive.
Drivers have been updated. The monitors are 19-32″.
Intel(R) HD Graphics 4000
BaseBoard Manufacturer Dell Inc.
BaseBoard Product 0YXT71
BaseBoard Version A02
No USB-C ports (but lots of older USB ports).
If my options are between opening up the machine to replace hardware, and plugging in some sort of adapter/hub, I’d prefer to plug something in.