Speedy Inks - Compatible Toner Cartridge Set Replacement 4053-401 Black 4053-501 Yellow 4053-601 Magenta 4053-701 Cyan TN310K TN310C TN310M For use in Konica Minolta BizHub: C350, C351, C450 Set includes: 4053-401 Black, 4053-501 Yellow, 4053-601 Magenta, 4053-701 Cyan Page Yield Black 11,500 | Color 11,500 100% Quality Satisfaction Guarantee! The use of aftermarket replacement cartridges and supplies does not void your printer's warranty