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Green rectangular DDR5 memory module with gold contacts and black chips, no heat spreader

OWC

OWC 64GB DDR5 5600 CL46 2Rx4 ECC Registered DIMM memory upgrade

SKU CH-5MY7-AHA3R

A 64 GB DDR5-5600 ECC registered DIMM with CL46 latency for Fujitsu PRIMERGY servers

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • ECC registered design protects data integrity in critical workloads
  • 64GB capacity in a single 288-pin module simplifies expansion
  • DDR5 5600 speed with CL46 latency delivers responsive server performance
  • 1V operation reduces power draw for dense configurations
  • Validated for Fujitsu PRIMERGY RX2450 M2, RX2530 M7, RX2540 M7, TX2550 M7 and RX8770 M7

System-specific server memory

This OWC module is a 64GB DDR5 ECC Registered DIMM built for Fujitsu PRIMERGY RX2450 M2, RX2530 M7, RX2540 M7 and TX2550 M7 platforms. It will not work in standard desktop computers and cannot be mixed with unbuffered or load-reduced memory types.

Sustained-load behaviour

Rated at DDR5 5600 with CL46 latency, the module delivers consistent throughput for virtualisation, database and compute workloads. ECC and registered signalling protect data integrity during continuous operation in multi-socket servers.

Thermals and power

Operating at 1.1V without a heat spreader, the 288-pin DIMM relies on chassis airflow for cooling. The low voltage and JEDEC-standard design keep power draw modest in typical rackmount deployments.

How it compares

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

Price $1,785.99
Pricier than about 67% 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 $27.91 per GB
Pricier than about 78% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D52R464 GB
Total capacity64 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsFujitsu PRIMERGY RX2450 M2
Fujitsu PRIMERGY RX2530 M7
Fujitsu PRIMERGY RX2540 M7
Fujitsu PRIMERGY TX2550 M7
Fujitsu PRIMERGY RX8770 M7

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1.1 V DDR5 RDIMM draw when the server runs 24/7?

The module operates at 1.1 V, the standard JEDEC voltage for DDR5 registered DIMMs, which keeps power draw and heat low during continuous operation in compatible Fujitsu PRIMERGY servers.

What must the motherboard support for this 288-pin ECC registered DIMM to function?

The system must accept DDR5 5600 PC5-44800 registered ECC memory in a 288-pin RDIMM slot and be one of the listed Fujitsu PRIMERGY models such as RX2450 M2 or RX2530 M7.

Can this 2Rx4 CL46 module share channels with existing DDR5 RDIMMs in a Fujitsu PRIMERGY RX2540 M7?

Yes, provided the other modules are also DDR5 5600 registered ECC DIMMs; mixing with unbuffered or load-reduced memory is not supported.

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