Here is the list of USC players (page 5 of the linked PDF) invited to the NFL Combine.
BUEHLER, DAVID
CUSHING, BRIAN
ELLISON, KEVIN
HARRIS, CARY
MAIAVA, KALUKA
MATTHEWS, CLAY
MAUALUGA, REY
MOALA, FILI
MOORE, KYLE
PINKARD, JOSH
SANCHEZ, MARK
TURNER, PATRICK
After a quick glance of the list it looks like the most of any D-1 program.
Congrats guys!
Good Luck!!