2 Black Compatible Laser Toner Cartridges Replacement for Brother TN 436 Black Page Yield of 6, 500 per Cartridge @ 5% Standard Coverage on A4 Paper Size. For Brother HL-L8260CDW, HL-L8360CDW, HL-L8360CDWT, HL-L9310CDW (T) & MFC-L8900CDW, MFC-L9570CDW, MFC-L8610CDW Excellent printing quality and page yield matching the standards of OEM. PRINTOXE® Brand 100% Compatible in Retail Package Shown in Image. Shelf Life exceeds 24 Months.