X644e, X646e High Yield Print Cartridge (21K)
Average Cartridge Yield 21,000 standard pages. Declared yield value in accordance with ISO/IEC 19752.
Lexmark X644e, X646e High Yield Print Cartridge (21K), Black
Lexmark X644e, X646e High Yield Print Cartridge (21K). Colour(s) of print cartridges: Black