Keystron E5K49A is compatibility with HP Color Laser Jet Enterprise Flow MFP: M577c, M577z, M681f, M681z, M682z; HP Color LaserJet Enterprise: M652dn, M652n, M653dh, M653dn, M653x; HP Color LaserJet Enterprise MFP: M577dn, M577f, M681dh, M681f; HP LaserJet Enterprise Flow MFP: M527c, M527z, M631h, M632z, M633z, HP LaserJet Enterprise MFP: M527f, M631z, M632fht, M632h, M633fh, HP Page Wide Enterprise Color: 556dn, 556xh, 765dn, HP PageWide Enterprise Color MFP: 586dn, 586f; HP Page Wide Enterprise Color Flow MFP: 586z