These printers use the C780H2YG cartridge:
Lexmark C 780
Lexmark C 780 DN
Lexmark C 780 DTN
Lexmark C 780 N
Lexmark C 782
Lexmark C 782 DN
Lexmark C 782 DN XL
Lexmark C 782 DTN
Lexmark C 782 DTN XL
Lexmark C 782 N
Lexmark C 782 N XL
Lexmark X 780
Lexmark X 782 E 35 Color MFP
Lexmark X 782 E