PA has:
Penn State with 1 main campus and 19 branch campuses
Pittsburgh with 1 main campus and 3 branch campuses
17 other state and state-related campuses
It looks like the branch campuses are limited 4-year schools that are like expensive versions of community college for students trying to transfer to the main campus. Many of the PA state and state-related schools show up on the “highest student debt” lists due to the relatively poor in-state financial aid.