This product is either discontinued or we cannot get that from suppliers.
Konica Minolta A0V301K Toner cartridges, Black, Yield 2,500 pages, Compatible Magicolour 1600W, 1650EN, 1690MF, Laser Print.
Konica Minolta A0V301K Magicolor 1600 Black Toner Cartridge (2.5k).