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Green rectangular DDR4 288-pin ECC registered DIMM module with black chips, no heat spreader

OWC

OWC 64GB DDR4 2933 PC4-23400 CL21 2Rx4 288-pin 1.2V ECC Registered RDIMM for Supermicro H12SST-PS

SKU CH-7WYA-CWZ8R

A 64 GB DDR4 2933 MHz ECC registered RDIMM for Supermicro H12SST-PS servers

  • Capacity64GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 64GB

Struck-through versions exist but are not stocked here.

  • ECC registered design protects data integrity in servers
  • 64 GB capacity in a single module for dense configurations
  • DDR4 2933 speed with CL21 latency for responsive throughput
  • 2 V operation reduces power draw under load
  • Compatible with Supermicro H12SST-PS and backward compatible to 2133, 2400, 2666 MHz

Server memory upgrade

This OWC 64GB DDR4 2933 ECC Registered RDIMM is a single 288-pin module built for the Supermicro H12SST-PS motherboard. It runs at 1.2V with CL21 latency and a 2Rx4 rank configuration. The part targets servers, workstations and NAS systems that require registered error-correcting memory.

Compatibility check

Verify that your H12SST-PS board accepts registered ECC DIMMs and that no unbuffered or load-reduced modules are already installed, as mixing types is not supported. The module is backward compatible with 2133, 2400 and 2666MHz bus speeds, so it will clock down if the system runs at a lower frequency. Ensure a free 288-pin DDR4 slot is available for the upgrade.

Target users

Suits administrators extending the life of a Supermicro H12SST-PS platform or building new server capacity with validated ECC registered memory. Not for desktop PCs, laptops or any system that only supports unbuffered non-ECC DIMMs. Buyers needing a different capacity, speed or form factor should look elsewhere.

Highlights

  • ECC registered design protects data integrity in servers
  • 64 GB capacity in a single module for dense configurations
  • DDR4 2933 speed with CL21 latency for responsive throughput
  • 2 V operation reduces power draw under load
  • Compatible with Supermicro H12SST-PS and backward compatible to 2133, 2400, 2666 MHz

Specifications

BrandOWC
Part Number2R9D42R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard H12SST-PS

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the OWC 64GB DDR4 2933 module ship alone or with extra parts?

The package contains one 64GB 288-pin ECC Registered DIMM. No additional cables, brackets or tools are included.

Should I choose this 64GB 2Rx4 stick or a different capacity for the Supermicro H12SST-PS?

This single module delivers 64GB at 2933MHz CL21. Add more identical sticks to reach the board's maximum supported capacity.

Will the rated 2933MHz speed run at that frequency once installed in the H12SST-PS?

The module operates at 2933MHz CL21 and is backward compatible with 2133, 2400 and 2666MHz if the system requires a lower speed.

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