Amazon.com: TCT Premium Compatible Toner Cartridge Replacement for Samsung ML-2010D3 Black Works with Samsung ML-2010 ML-2510 ML-2570 ML-2571N, SCX-4521F SCX-4521FG Printers (3,000 Pages) - 2 Pack : Office Products
Compatible Samsung SCX-4521D3 Toner Cartridge
SPS 4521 / SCX4521 Black Toner Cartridge for Use in Samsung SCX-4521, SCX-4321F, SCX-4521F, SCX-4321 Single Color Toner (Black) : Amazon.in: Computers & Accessories
Black Toner Cartridge Compatible with Samsung SCX-4521F (V6720)