BROTHER HL-5200DW DRUM UNIT
BRAND; BROTHER
MODEL; BROTHER HL-5200DW BLACK LASER DRUM UNIT
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It seems like you're inquiring about a Brother laser toner cartridge for a specific printer model, the Brother HL-L5200DW.
The Brother HL-L5200DW is a monochrome laser printer, and the toner cartridge you're looking for is likely the Brother TN850 or TN880.