Amazon.com: HP 508X Black High-yield Toner Cartridge | Works with HP Color LaserJet Enterprise M552, M553, HP Color LaserJet Enterprise MFP M577 Series | CF360X : Electronics
HP Color LaserJet Enterprise M552, M553, M554, M555 - Replace the toner-collection unit | HP® Customer Support
HP M552 | M553 508X Rainbow Toner Pack K(12.5k) CMY(9.5k)