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Green rectangular DDR5 RDIMM module with black chips on both sides, no heat spreader, 288 gold pins along bottom edge

OWC

OWC 64GB DDR5 5600 ECC RDIMM CL46 2Rx4 1.1V 288-pin memory upgrade

SKU CH-VGA1-YB7PK

A 64 GB DDR5 5600 ECC registered DIMM 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

  • 64GB capacity expands server memory for heavy workloads
  • DDR5 5600 speed delivers high bandwidth for data-intensive tasks
  • ECC registered design detects and corrects errors for reliable operation
  • 1V low voltage reduces power draw in dense configurations
  • Validated for Supermicro SuperServer SYS-821GE-TNHR and compatible models

64 GB DDR5 ECC RDIMM for Supermicro servers

This 64 GB DDR5 5600 registered DIMM adds error-correcting memory to compatible Supermicro SuperServer systems. It is built for workstations, NAS appliances, servers and network switches that require ECC registered modules. Standard desktop computers cannot use this memory.

Installation notes and common issues

The module fits a 288-pin DDR5 slot and installs like any DIMM, but it must not be mixed with unbuffered or load-reduced ECC memory. Systems that require registered DIMMs will not post if the wrong type is populated. Verify the server manual for population rules and rank limits before adding this module.

Compatibility checklist before ordering

Confirm your Supermicro model matches one of the listed SuperServer part numbers: SYS-821GE-TNHR, SYS-821GV-TNR, SYS-E403-13E-FRN2T, SYS-F511E2-RT or SYS-F521E3-RTB. Check that the platform supports DDR5 5600 registered ECC at 1.1 V and that the memory controller accepts 2Rx4 organisation. Ensure no unbuffered or load-reduced DIMMs are already installed.

How it compares

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

Price $1,651.99
Pricier than about 66% 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 $25.81 per GB
Pricier than about 71% 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-821GE-TNHR
Supermicro SuperServer SYS-821GV-TNR
Supermicro SuperServer SYS-E403-13E-FRN2T
Supermicro SuperServer SYS-F511E2-RT
Supermicro SuperServer SYS-F521E3-RTB

Other versions of this model

5 more in the same range

Questions about this item

How do I verify the 64GB DDR5 5600 ECC RDIMM is running at PC5-44800 CL46 after installation?

Enter the server BIOS or UEFI and confirm the memory speed shows 5600 MT/s, CAS latency 46, voltage 1.1 V and that ECC Registered mode is active for the installed module.

What ships with the OWC 5R6D52R464GB module and what must be sourced separately?

The package contains the single 64 GB 288-pin DDR5 ECC Registered DIMM only; no heat spreader, cables, tools or additional DIMMs are included.

Which capacity and rank should I choose for a Supermicro SuperServer SYS-821GE-TNHR upgrade?

This part is a single 64 GB 2Rx4 Registered ECC DIMM; select it when the server requires a 64 GB module at DDR5 5600 CL46 1.1 V and the memory slots accept 2Rx4 registered memory.

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