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Green 288-pin DDR4 RDIMM module, black chips, no heat spreader

OWC

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

SKU CH-W5TJ-GQS8N

64GB DDR4 2933MHz ECC registered RDIMM for Supermicro X11SPA-TF, X11SPD-F, X11SPG-TF, X11SPH-nCTF and X11SPH-nCTPF motherboards

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

Capacity 64GB

  • 64 GB capacity expands server memory headroom
  • DDR4 2933 MHz CL21 speed delivers responsive throughput
  • ECC registered design protects data integrity in critical workloads
  • 2Rx4 dual-rank organisation increases density per slot
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Server-grade ECC RDIMM

This 64GB DDR4 module runs at 2933MHz with CL21 latency and 1.2V operation. It is built for Supermicro motherboards X11SPA-TF, X11SPD-F, X11SPG-TF, X11SPH-nCTF and X11SPH-nCTPF. The registered design with ECC suits workstation and server workloads that demand data integrity.

Straightforward slot installation

Align the 288-pin notch and press firmly until the retention clips engage. No heat spreader is fitted, so clearance is rarely an issue. The module will not work in standard desktop boards and must not be mixed with unbuffered DIMMs. Systems running at 2133MHz, 2400MHz or 2666MHz will downclock automatically.

Registered ECC requirement

The single deciding specification is the registered ECC RDIMM form factor. Only platforms that explicitly support registered error-correcting memory can use this kit. Buyers needing standard unbuffered desktop RAM or non-ECC modules must choose a different product.

Highlights

  • 64 GB capacity expands server memory headroom
  • DDR4 2933 MHz CL21 speed delivers responsive throughput
  • ECC registered design protects data integrity in critical workloads
  • 2Rx4 dual-rank organisation increases density per slot
  • Backward compatible with 2133, 2400 and 2666 MHz systems

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 X11SPA-TF
Supermicro Motherboard X11SPD-F
Supermicro Motherboard X11SPG-TF
Supermicro Motherboard X11SPH-nCTF
Supermicro Motherboard X11SPH-nCTPF

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

How can I confirm the 64GB DDR4 2933MHz CL21 ECC RDIMM is running at the correct speed after installation?

Enter the system BIOS or UEFI and verify the memory frequency reads 2933MHz (PC4-23400) with CL21 timings and 1.2V voltage.

What is included in the box and do I need to purchase any additional components for installation?

The box contains the single 64GB 288-pin ECC Registered RDIMM module; no extra cables, brackets or cooling parts are required.

Which capacity or version should I choose for a Supermicro X11SPA-TF motherboard?

This 64GB 2Rx4 module replaces Supermicro part numbers MEMDR464LCL01ER29, MEMDR464LHL02ER29, MEMDR464LSL01ER29 and MEM-DR464MC-ER29.

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