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

OWC

OWC 64GB DDR4 2933MHz CL21 ECC Registered RDIMM 288pin 1.2V 2Rx4 memory upgrade

SKU CH-W4Y0-2WYNE

64 GB DDR4 2933 MHz ECC registered DIMM for Supermicro X11DPFR-S, X11DPFR-SN, X11DPG-HGX2, X11DPG-OT-CPU and X11DPG-QT motherboards

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

Capacity 64GB

  • 64 GB capacity expands server memory headroom
  • DDR4 2933 MHz CL21 speed supports high-throughput workloads
  • ECC registered design protects data integrity in critical tasks
  • 2 V operation reduces power draw per module
  • Validated for Supermicro X11DPFR-S, X11DPFR-SN, X11DPG-HGX2, X11DPG-OT-CPU, X11DPG-QT

64GB DDR4 2933MHz ECC Registered RDIMM

This is a 64GB DDR4 2933MHz CL21 ECC Registered RDIMM from OWC. It operates at 1.2V on a 288-pin interface and uses a 2Rx4 rank configuration. The module is designed for server and workstation platforms that require registered memory with error correction.

Compatibility and constraints

It fits Supermicro motherboards X11DPFR-S, X11DPFR-SN, X11DPG-HGX2, X11DPG-OT-CPU and X11DPG-QT. The module runs at 2933MHz and is backward compatible with 2133MHz, 2400MHz and 2666MHz systems. It will not work in standard desktop computers and cannot be mixed with unbuffered memory.

Registered ECC requirement

The single specification that decides fit is the registered ECC design. Your system must support DDR4 registered DIMMs with ECC; unbuffered or non-ECC platforms will not accept this module.

How it compares

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

Price $350.99
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 $5.48 per GB
Cheaper than about 70% 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 systemsSupermicro Motherboard X11DPFR-S
Supermicro Motherboard X11DPFR-SN
Supermicro Motherboard X11DPG-HGX2
Supermicro Motherboard X11DPG-OT-CPU
Supermicro Motherboard X11DPG-QT

Other versions of this model

5 more in the same range

Questions about this item

Does the 288-pin DDR4 RDIMM fit the DIMM slots on a Supermicro X11DPFR-S motherboard?

Yes, the 288-pin registered DIMM matches the DDR4 slots on the listed Supermicro X11DPF and X11DPG boards.

What is the correct way to seat the 64 GB module, and what step do builders often miss?

Align the module notch with the slot key, press down evenly until both side latches click, and verify the system reports the full 64 GB at 2933 MHz.

When should the ECC registered module be replaced in a server workload?

Replace the module if the platform ECC logger records recurring correctable errors or an uncorrectable error occurs.

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