Dell 59J78 (331-8434) Black Imaging Drum is designed to perform in the Dell C2660, Dell C2660dn, Dell C2665, Dell C2665dnf, Dell C3760, Dell C3760dn, Dell C3760n, Dell C3765, Dell C3765dnf
Premium 59J78 (331-8434) Black Imaging Drum fully compatible with the Dell C2660, Dell C2660dn, Dell C2665, Dell C2665dnf, Dell C3760, Dell C3760dn, Dell C3760n, Dell C3765, Dell C3765dnf. The use of compatible supplies does not void your printer warranty.