Lexmark Twin-Pack #36XL - Print cartridge - High Yield - 2 x black - 500 pages - LRP - for X2600, 2650, 2670, 3650, 4630, 4650, 5650, 6650, 6675, Z2300, 2320, 2420 High yield 500 pages X2600, 2650, 2670, 3650, 4630, 5650, 6650, 6675, Z2300, 2320, 2420