These printers use the C736H2K cartridge:

Lexmark C 736

Lexmark C 736 DN

Lexmark C 736 DTN

Lexmark C 736 N

Lexmark X 734

Lexmark X 734 DE Color MFP

Lexmark X 734 DE

Lexmark X 736

Lexmark X 736 DE Color MFP

Lexmark X 736 DE

Lexmark X 738

Lexmark X 738 DE Color MFP

Lexmark X 738 DE

Lexmark X 738 DTE

Lexmark XS 736 DE