Developer Pro sandbox

The Developer Pro sandbox differs from the Developer sandbox type regarding the amount of data and file storage that can be held, that is, 1 GB.

This type is generally used for global development environments, that is, a sandbox that conveys that all the developers work in a single organization (coming from different Developer sandboxes) and can be used for code base quality assurance (for example, running all Apex tests or validating cross-developer/admin implementations).