Compatible Black Toner Cartridge SCX-4521D3 for Samsung Printer SCX-4321/SCX -4521F/SCX-4721F - Tianse
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