V4ink174;1 pack New Compatible Okidata OKI B4400 OKI B4600 43502301 Toner Cartridge-3000 Page Yield for OKI B4400 OKI B4500 OKI B4550 OKI B4600 OKI B4600n Printers Color: Black Style: New Compatible/Replacement Page Yield = 3,000 Page @5% coverage ISO/IEC 19752 (letter/A4) Guarantee: one-year 100% Satisfaction Guarantee/Shelf Time: 18M Compatible Printer List:OKI B4400 OKI B4500 OKI B4550 OKI B4600 OKI B4600n