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Four black toner cartridges in white LD Products boxes

LD Products

LD Products 521X Extra High Yield Black Toner Cartridge 4-Pack 45000 Pages

SKU CH-EMAP-BYSRR

Four extra-high-yield black toner cartridges rated for 45000 pages, compatible with Lexmark MS810, MS811 and MS812 printers

  • TypeTONER
  • Prints up to 45,000 pages per cartridge at 5% coverage
  • Works with Lexmark MS810, MS811 and MS812 series printers
  • Extra high yield black toner replaces Lexmark 521X
  • Four cartridges included for lower cost per page
  • Yield measured to ISO IEC 24711 standard

What this pack contains

This four-pack supplies 521X extra high yield black toner cartridges manufactured by LD Products. Each cartridge is rated for 45000 pages at five percent coverage under ISO IEC 24711. The set is intended for offices that run Lexmark MS810, MS811 or MS812 series printers and want a lower-cost alternative to original Lexmark supplies.

Check your printer model and region

Confirm that the exact model you own appears in the compatibility list: MS810de, MS810dn, MS810dtn, MS810n, MS811dn, MS811dtn, MS811n, MS812de, MS812dn or MS812dtn. The supplier notes that these cartridges will only work with printers purchased within the United States and Canada, so imported or grey-market units may not accept them.

Build and everyday handling

Cartridges arrive in retail packaging that may vary in appearance but are professionally manufactured to fit the designated Lexmark slots. Installation follows the standard toner replacement procedure for the MS810, MS811 and MS812 series, so no special tools or firmware steps are required. Using compatible replacements does not void the printer warranty.

Highlights

  • Prints up to 45,000 pages per cartridge at 5% coverage
  • Works with Lexmark MS810, MS811 and MS812 series printers
  • Extra high yield black toner replaces Lexmark 521X
  • Four cartridges included for lower cost per page
  • Yield measured to ISO IEC 24711 standard

Specifications

BrandLD Products
TypeTONER

Questions about this item

What comes in the 4-pack and is anything else needed to start printing?

The box contains four black toner cartridges labelled 52D1X00 that replace Lexmark 521X extra high yield units. No extra parts are required; install them directly into a compatible Lexmark MS810, MS811 or MS812 printer.

Should I choose the 521X extra high yield over a standard yield cartridge?

The 521X extra high yield version is rated for 45,000 pages per cartridge at 5 % coverage under ISO/IEC 24711, so it suits high-volume printing and reduces replacement frequency compared with standard yield alternatives.

What does the 45,000-page figure mean for everyday use?

Each cartridge yields roughly 45,000 pages when printed at the industry-standard 5 % page coverage defined by ISO/IEC 24711; actual page count will vary with content density, duplex settings and printer model.

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