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Four green DDR5 RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 256GB (4x64GB) DDR5 4800 CL40 ECC Registered RDIMM for Dell PowerEdge HS5610 HS5620 memory upgrade

SKU CH-M2BK-0N6RD

A 256 GB kit of four 64 GB DDR5 4800 CL40 ECC registered RDIMMs for Dell PowerEdge HS5610 and HS5620 servers

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity across four 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design protects data integrity in critical tasks
  • 1 V operation reduces power draw under load
  • Validated for Dell PowerEdge HS5610 and HS5620 systems

OWC 256GB DDR5 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5 4800 CL40 registered ECC modules built to JEDEC standard. It is designed for Dell PowerEdge HS5610 and HS5620 servers that require registered memory with error correction. The modules operate at 1.1V and use a 2Rx4 rank configuration without heat spreaders.

Check registered ECC requirement

Verify that your HS5610 or HS5620 currently uses registered ECC RDIMMs and not unbuffered or load-reduced types. Mixing registered modules with other memory categories is not supported and will prevent the system from booting. Confirm the platform has four available 288-pin DDR5 slots to accept the full kit.

Upgrade from smaller registered kits

The kit replaces lower-capacity registered ECC sets to reach 256GB in a single installation. The jump is worth it when workloads such as virtualization databases or large dataset processing exceed the limits of the existing memory configuration.

How it compares

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

Price $6,032.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $23.57 per GB
Pricier than about 68% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D52R4256S
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell PowerEdge HS5610
Dell PowerEdge HS5620

Other versions of this model

5 more in the same range

Questions about this item

What comes in the box and does anything else need to be purchased?

The kit contains four 64GB DDR5 4800 CL40 ECC Registered RDIMM modules for a total of 256GB. No additional memory parts are required for this upgrade.

How do I choose between the available versions or capacities for this kit?

This part number 4R8D52R4256S is a single 256GB kit built from four 64GB 2Rx4 modules. Select it when your Dell PowerEdge HS5610 or HS5620 needs that exact capacity and rank configuration.

What does the 4800 speed rating mean once the modules are installed in the server?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.1V, delivering JEDEC-standard bandwidth and error correction for the HS5610 and HS5620 platforms.

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