For HP LaserJet Enterprise Flow MFP M631h, M632z, M633z, LaserJet Enterprise M608dn, M608n, M608x, M609dh,
M609dn, M609x, M631dn, M631z, LaserJet Enterprise MFP M632fht, LaserJet Enterprise MFP M632h, LaserJet Enterprise MFP M633fh. Cartridge yield (up to): 25,000 pages. Black.