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Green rectangular DDR4 memory module with gold contacts and black chips, no heat spreader

OWC

OWC 64GB DDR4 2933 CL21 2Rx4 288-pin 1.2V ECC Registered RDIMM PowerEdge C4140

SKU CH-DPM9-F1YJ5

A 64 GB DDR4 2933 ECC registered RDIMM validated for the PowerEdge C4140 server

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

Show 4 more
  • ECC registered design protects data integrity in servers
  • 64GB capacity in a single 2Rx4 module
  • 2933MHz DDR4 speed with CL21 latency
  • 2V operation lowers power draw
  • Validated for PowerEdge C4140 with CascadeLake CPUs

Target system and purpose

This is a single 64GB DDR4 ECC Registered RDIMM built for the PowerEdge C4140 with CascadeLake CPUs. It suits administrators expanding memory capacity in compatible Dell servers or workstations.

Compatibility checks

Verify the server uses registered ECC DDR4 and does not mix unbuffered or load-reduced modules. Confirm the platform accepts 2933MHz CL21 2Rx4 288-pin 1.2V DIMMs and that the CPU is a CascadeLake model.

Build integration

The module plugs into a standard 288-pin DDR4 slot and operates at 1.2V. It replaces Dell part numbers AA579530 AA601615 AB003154 SNPW403YC/64G SNPW403YC/64VXR W403Y and supports backward speeds of 2133MHz 2400MHz 2666MHz.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $408.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.39 per GB
Cheaper than about 62% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R464 GB
Total capacity64 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsPowerEdge C4140 (CascadeLake CPU)

Other versions of this model

5 more in the same range

Questions about this item

What comes inside the package and what must I buy separately?

The box contains one 64GB DDR4 2933 CL21 2Rx4 288-pin 1.2V ECC Registered RDIMM module. No extra parts or cables are required for installation in a compatible PowerEdge C4140 server.

Which capacity or version should I select for my PowerEdge C4140?

This single module provides 64GB at 2933MHz CL21. Choose it when you need a registered ECC DIMM that matches the server's DDR4 2933 specification and replaces Dell part numbers AA579530, AA601615, AB003154, SNPW403YC/64G or W403Y.

What does the 2933MHz rating mean once the module is installed?

The module runs at DDR4 2933 (PC4-23400) with CL21 latency at 1.2V. It is backward compatible with 2133MHz, 2400MHz and 2666MHz bus speeds, so it will operate at the highest speed the C4140 platform supports.

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