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Lexmark controller card 2.4 inch MPN 40X7570

Lexmark

Lexmark Controller Card 2.4" MPN 40X7570

SKU CH-8Q7D-X15K2

Controller card 2.4" for Lexmark MS710, MS810, MS811 and MS812 series printers

  • Lexmark controller card for compatible printers
  • 4 inch form factor fits supported devices
  • Works with MS710dn and MS810 series models
  • Compatible with MS811n, MS811dtn, MS812dn, MS812dtn
  • New condition, manufacturer listed July 2026

Lexmark 2.4" Controller Card

The Lexmark controller card uses a 2.4 inch form factor and carries the manufacturer part number 40X7570. It is designed for Lexmark MS series printers including the MS710dn, MS810n, MS810dn, MS810dtn, MS811n, MS811dtn, MS812dn and MS812dtn models. This card manages internal printer functions and communication.

Sustained print workload handling

The card processes continuous print data streams across the supported MS810, MS811 and MS812 series without the bottlenecks seen in short-burst tests. It maintains steady throughput during long print runs on the MS710dn and MS810dtn. Firmware on the card coordinates with printer engines to keep queues moving.

Thermal and power profile

The compact 2.4 inch board draws power directly from the printer's internal supply, adding no external power requirement. It operates within the thermal envelope of the MS810 and MS812 chassis without additional cooling. Noise contribution is negligible compared to the printer's own mechanical systems.

Highlights

  • Lexmark controller card for compatible printers
  • 4 inch form factor fits supported devices
  • Works with MS710dn and MS810 series models
  • Compatible with MS811n, MS811dtn, MS812dn, MS812dtn
  • New condition, manufacturer listed July 2026

Specifications

BrandLexmark

Questions about this item

Does the 2.4" Lexmark 40X7570 controller card add noticeable heat or fan noise when the MS812dtn runs continuously?

The card draws power from the printer's internal bus and has no active cooling, so it adds no extra fan noise and only marginal heat inside the MS812dtn chassis.

Which printer models must I already own for this 40X7570 card to function?

The card is designed for the MS812dtn, MS812dn, MS811dtn, MS710dn, MS810n, MS810dn, MS810dtn and MS811n; one of those printers is required.

Will the 40X7570 card work in an older Lexmark MS710dn that I plan to keep alongside a newer MS812dn?

Yes, the card is listed for both the MS710dn and the MS812dn, so it can be moved between those two printers without compatibility issues.

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