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OWC

OWC 64GB DDR4 3200 PC4-25600 CL22 2Rx4 288-pin 1.2V ECC Registered RDIMM server RAM

SKU CH-PKPS-RMSKX

A 64GB DDR4 3200 ECC registered RDIMM for servers, workstations and NAS systems with CL22 latency and 1.2V operation

  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Product type288-Pin DDR4 ECC RDIMM
  • ECC registered design protects data integrity in servers
  • 64GB single module maximises capacity per DIMM slot
  • 3200MHz DDR4 speed with CL22 latency for responsive performance
  • 2V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

Server ECC RDIMM Upgrade

This single 64GB DDR4 module runs at 3200MHz with CL22 latency and 1.2V operation. It uses a 288-pin registered ECC design built for servers, workstations and NAS systems. The module is not compatible with standard desktop computers or unbuffered memory configurations.

Sustained Workload Stability

Registered buffering and ECC correction maintain data integrity during continuous multi-threaded tasks such as virtualization, database serving or rendering farms. Backward compatibility with 2133MHz, 2400MHz, 2666MHz and 2933MHz buses lets the module clock down without errors when installed in older platforms.

Replaces Dell 370-AEVP

This part directly replaces the Dell 370-AEVP module in supported PowerEdge and Precision systems. The upgrade is worth it when expanding capacity beyond factory limits or when a failed stick must be swapped with a JEDEC-compliant, warranty-safe equivalent. Builders needing consumer DIMMs or load-reduced ECC should look elsewhere.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $407.99
Pricier than about 67% of the 6,523 comparable items (median $188.99).
CAS latency 22
Lower than about 80% of the 439 comparable items (median 40).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number3R2D42R464 GB
Product type288-Pin DDR4 ECC RDIMM
Memory
CAS latency22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How much power does the 1.2V 64GB module draw under continuous server load?

The module operates at 1.2V JEDEC standard voltage; registered ECC RDIMMs at this voltage typically draw a few watts per stick, and the lack of a heat spreader indicates low thermal output for 24/7 operation.

What motherboard slot and firmware support are required for this 288-pin ECC registered DIMM?

A DDR4 server or workstation board with 288-pin RDIMM slots and BIOS that enables registered ECC memory is required; standard desktop boards that only accept unbuffered UDIMMs will not work.

Will this 3200MHz CL22 stick run stably alongside existing 2666MHz or 2933MHz registered ECC modules?

Yes, the module is backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz registered ECC memory; the system will clock all populated slots to the lowest common speed.

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