Lexmark CS521DN Printer

Compatibility information for Lexmark CS521DN, based on current official Lexmark US manufacturer information for this model.

Product details

Brand: Lexmark
Model number: CS521DN

About this compatibility information

MatchMeThis is an independent compatibility research project. The information is provided for reference and may be incomplete or change over time.

Records are linked to their available source context. They document research observations and do not recommend a product, seller or transaction. Model numbers, item codes and regional variants may differ between markets.

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Compatibility intelligence

Parts listed for this product

Every listing includes its provenance and evidence strength. A listing is evidence, not a fit guarantee.

Search within 1 compatible parts

1 cited sourceInformation-only project

Consumables

(1)

1 / 1

ConsumablesOriginalEvidence-backed compatibilityStrong evidence · 95/100

Toner

Lexmark CS521, CS/CX62x Black 10.5K Toner Cartridge

Genuine Lexmark item 78C0U10 verified from official manufacturer evidence.

Manufacturer article number: 78C0U10

Why is this listed?

Primary evidence source shown directly · Model-specific · US

Strong evidence · 95/100

Automatically promoted from fully certified official Lexmark evidence.

manufacturer listingSource: LexmarkUS · en

Lexmark lists 78C0U10 for the CS521DN model.

Open source ↗Verified 2 Aug 2026

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