CS-S4521) BK compatible toner printer cartridge for samsung scx-4521d3 scx-4321 scx-4521 scx-4321f scx-4521f (3k pages) - AliExpress Computer & Office
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
Samsung SCX-4521F Toner Cartridges | CompAndSave
Samsung SCX-4521F Toner Cartridges | ComboInk
Compatible Replacements for Samsung SCX-4521D3 Set of 2 Black Laser Toner Cartridges for use in Samsung SCX-4321, SCX-4521, SCX-4521F, SCX-4521FG, and SCX-4521FR s - Walmart.com
LD Compatible Replacement for Samsung SCX-4521D3 Black Laser Toner Cartridge for use in Samsung SCX-4321, SCX-4521, SCX-4521F, SCX-4521FG, and SCX-4521FR s - Walmart.com