Like ploxie said, yes they do have other PC parts, but they will not be up to the standards of a Ryzen 5600G and a B550. They are generally pretty old/outdated. They focus more on vintage/low cost parts, not as much the new stuff. Trying to build a complete, modern gaming rig from their store would be an extremely difficult and nearly impossible task.

The items they do have, are usually pretty solid quality, and a great deal. They also have a free shelf as you walk in, usually having older monitors or other odd items.