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

OWC

OWC 64GB DDR5 5600 CL46 ECC Registered RDIMM 2Rx4 1.1V memory upgrade

SKU CH-V62D-R3S3J

A single 64GB DDR5 5600 CL46 ECC registered RDIMM at 1.1V for compatible Supermicro SuperServer systems

  • Total capacity64 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latency46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64 GB capacity lets you run more virtual machines simultaneously
  • ECC registered design detects and corrects single-bit errors for data integrity
  • DDR5 5600 speed delivers high bandwidth for demanding server workloads
  • 1 V operation reduces power draw compared to previous DDR generations
  • Qualified for Supermicro SuperServer SYS-221BT series ensuring reliable compatibility

Targeted Server Upgrade

This 64GB DDR5 5600 CL46 ECC Registered RDIMM is built for the listed Supermicro SuperServer models. It suits administrators who need to expand memory capacity in compatible workstation, NAS or server platforms.

Compatibility Check Required

Verify that your system accepts 288-pin DDR5 ECC Registered modules at 1.1V and that no Unbuffered or Load Reduced DIMMs are already installed. Mixing registered memory with other ECC types is not supported.

Build Integration

The single 64GB 2Rx4 module occupies one DIMM slot and operates at the JEDEC-standard 5600 speed. It leaves remaining slots free for identical registered DIMMs to reach the platform's maximum supported capacity.

How it compares

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

Price $1,579.99
Pricier than about 65% 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).
CAS latency 46
Higher than about 90% of the 483 comparable items (median 22).
Price per GB $24.69 per GB
Pricier than about 69% 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 latency46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro SuperServer SYS-221BT-DNC8R
Supermicro SuperServer SYS-221BT-DNTR
Supermicro SuperServer SYS-221BT-HNC8R
Supermicro SuperServer SYS-221BT-HNC9R
Supermicro SuperServer SYS-221BT-HNR

Other versions of this model

5 more in the same range

Questions about this item

What comes inside the OWC 64GB DDR5 5600 RDIMM package and what else is needed?

The box contains one 64GB 288-pin DDR5 5600 CL46 2Rx4 1.1V ECC Registered DIMM. No cables or tools are included; installation requires a compatible Supermicro SuperServer with free DDR5 RDIMM slots.

Which capacity or version of this DDR5 5600 RDIMM should I choose for my SuperServer SYS-221BT?

This module is a single 64GB 2Rx4 Registered DIMM. Choose it when your SuperServer SYS-221BT-DNC8R, DNTR, HNC8R, HNC9R or HNR needs one 64GB stick; add multiple identical modules to reach the desired total memory.

What does the 5600 CL46 rating mean once the RDIMM is installed in a SuperServer?

The module runs at DDR5 5600 (PC5-44800) with CAS latency 46 at 1.1V. In a supported SuperServer it delivers JEDEC-standard 5600 MT/s registered ECC throughput for error-corrected server workloads.

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