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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 64GB DDR5 4800 ECC RDIMM 2Rx4 1.1V CL40 memory upgrade

SKU CH-03B4-FQKJR

64GB DDR5 4800 ECC registered RDIMM for Gigabyte E163-Z30, E263-Z30, E283-Z90, E283-Z91 and G293-Z20 servers

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64GB capacity expands server memory headroom for virtualization workloads
  • DDR5 4800 speed delivers high bandwidth for data-intensive applications
  • ECC registered design corrects single-bit errors to protect data integrity
  • 1V operation reduces power draw in dense rack environments
  • Validated for Gigabyte E163-Z30 E263-Z30 E283-Z90 E283-Z91 G293-Z20 systems

64GB DDR5 ECC RDIMM for Gigabyte servers

This 64GB DDR5 4800 ECC Registered RDIMM is built for Gigabyte E163-Z30, E263-Z30, E283-Z90, E283-Z91 and G293-Z20 systems. It targets administrators expanding memory in workstations, servers or NAS appliances that require registered error-correcting modules. The single-module design adds 64GB capacity in one slot.

Installation notes and common issues

The module uses a standard 288-pin DDR5 form factor and installs like any RDIMM; align the key notch and press until the latches click. It will not work in standard desktop boards that accept only unbuffered memory, and it cannot be mixed with unbuffered or load-reduced ECC modules. Systems must support registered ECC at 1.1V for the module to initialise.

Verify platform and memory rules before ordering

Confirm the exact Gigabyte model number matches the supported list above. Check the system documentation for maximum registered DIMM capacity per slot and total channel population limits. Ensure the BIOS is updated to a version that recognises DDR5 4800 registered modules. Do not combine this stick with unbuffered or load-reduced ECC memory in the same platform.

How it compares

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

Price $1,419.99
Pricier than about 64% 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 40
Higher than about 70% of the 483 comparable items (median 22).
Price per GB $22.19 per GB
Pricier than about 67% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number4R8D52R464 GB
Total capacity64 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latency40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGigabyte E163-Z30
Gigabyte E263-Z30
Gigabyte E283-Z90
Gigabyte E283-Z91
Gigabyte G293-Z20

Other versions of this model

5 more in the same range

Questions about this item

How can I verify the module is running at DDR5 4800 CL40 with ECC registered operation after installation?

Check the BIOS or UEFI memory information screen; it should report DDR5 4800 (PC5-38400), CAS latency 40, 1.1 V and show ECC registered mode active.

What ships with the OWC 64GB DDR5 4800 ECC RDIMM and what must be purchased separately?

The box contains the single 64 GB 288-pin DDR5 ECC registered DIMM (part number 4R8D52R464GB); no additional cables, brackets or software are included.

Which OWC DDR5 ECC RDIMM capacity should I choose for a Gigabyte E283-Z90 server?

This 64 GB 2Rx4 module (4R8D52R464GB) is listed as compatible with the E283-Z90; select it when you need a single 64 GB registered DIMM for that platform.

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