He only played at USC for 1 year ... but DeMar DeRozan paid back his school with a MASSIVE donation that funded an incredible weight room renovation.
The University of Southern California just revealed its completely upgraded athlete weight room inside the Galen Center ... complete with new technology, new equipment, the works!
One of the issues that had been plaguing the school ... some of the equipment wasn't big enough for the taller athletes!
So, thanks to DeMar -- they swapped out old machines for new machines that can handle players 6'6" and above!