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Green rectangular circuit board with gold edge connectors and black memory chips

OWC

OWC 64GB DDR5 4800 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM memory upgrade Dell PowerEdge HS5610 HS5620

SKU CH-Y139-9XW2T

A 64 GB DDR5 4800 CL40 ECC registered RDIMM for Dell PowerEdge HS5610 and HS5620 servers

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64GB single module expands server capacity
  • DDR5 4800 CL40 delivers high throughput
  • ECC registered design corrects data errors
  • 1V operation reduces power draw
  • Validated for Dell PowerEdge HS5610 and HS5620

Server-grade DDR5 ECC RDIMM

This OWC 64GB DDR5 4800 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM is built for Dell PowerEdge HS5610 and HS5620 servers. It delivers 64GB of registered error-correcting memory in a single module for workloads that demand data integrity.

Registered DIMM for multi-socket platforms

The registered buffer reduces electrical load on the memory controller, allowing larger capacities per channel in multi-processor configurations. ECC corrects single-bit errors on the fly, and the 1.1V DDR5 operation fits the power envelope of the HS5610 and HS5620 platforms without requiring unbuffered or load-reduced modules.

Replaces Dell AC239379 SNPJ52K5C/64G

This module directly substitutes the Dell part number AC239379 SNPJ52K5C/64G, adding 64GB per slot at DDR5 4800 speed. The upgrade is worthwhile when expanding total system memory beyond factory limits or when replacing failed sticks in HS5610 and HS5620 servers that require registered ECC DDR5.

How it compares

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

Price $1,417.99
Pricier than about 64% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $22.16 per GB
Pricier than about 67% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number4R8D52R464 GB
Total capacity64 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

Will the CL40 latency limit throughput when the module runs at 4800 MT/s all day?

CL40 is the rated timing for DDR5 4800 operation; the module is validated at that speed and latency combination.

Does the registered design and lack of a heat spreader change thermals or power draw during continuous server workloads?

Registered buffering adds minimal latency and the 1.1 V DDR5 voltage keeps power draw low; no heat spreader is fitted, so airflow across the PCB handles cooling.

What must the Dell PowerEdge HS5610 or HS5620 already have installed for this 2Rx4 ECC RDIMM to function?

The server must support DDR5 ECC registered memory and have an available 288-pin RDIMM slot; mixing with unbuffered or load-reduced DIMMs is not supported.

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