Pandora’s Box is a game machine, with games pre-loaded. It tends to have thousands of arcade games pre-loaded.

It’s a popular choice for restoring actual full size arcade machines, with dead motherboards. It’s also an option to upgrade (or just revive from motherboard death) an Arcade1Up.

With some effort, a cheap PC will do the same job, but some folks like that they’re premade and ready to use.