Compatible HP 508A Black Toner Cartridge, 6,000 page yield. Replaces HP part numbers: 508A Black, CF360A. Laser Toner Cartridge works with printer models HP LaserJet Enterprise M553, M553n, M553dn, M553x, M553dh, M552, M552dn; LaserJet Enterprise flow M577, MFP M577, M577dn, M577c, M577f, M577z, MFP M577dn, MFP M577c, MFP M577f, MFP M577z; LaserJet Managed E55040, E55040dn, MFP E55040, MFP E55040dn, M553, M553xm.