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Green bare circuit board DDR5 RDIMM with black chips and gold contacts

OWC

OWC 128GB DDR5 5600 ECC Registered RDIMM 4Rx4 CL46 1.1V Gigabyte R283-S91/92/93/94/95 memory upgrade

SKU CH-EFHK-C457B

128GB DDR5 5600 ECC registered RDIMM, CL46, 1.1V, for Gigabyte R283-S91/92/93/94/95 servers

  • Total capacity128 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latency46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank4Rx4

Capacity 128GB

  • 128 GB capacity lets you run more virtual machines and larger datasets
  • ECC registered design detects and corrects single-bit errors for server-grade reliability
  • DDR5 5600 speed with CL46 latency delivers high throughput for compute-intensive workloads
  • 1 V operation reduces power draw and heat in dense rack environments
  • Validated for Gigabyte R283-S91 through R283-S95 platforms for drop-in compatibility

Target System Upgrade

This 128GB DDR5 module upgrades Gigabyte R283-S91 through R283-S95 servers and workstations. It adds ECC registered memory capacity to compatible platforms. The part is not suitable for standard desktop computers or systems requiring unbuffered or load-reduced DIMMs.

Registered ECC Requirement

The module uses registered ECC DDR5 technology with a 4Rx4 organisation and CL46 latency at 5600 MT/s. Compatibility depends on the host accepting registered ECC RDIMMs; mixing with unbuffered or load-reduced memory is not supported.

Build Integration

The single 288-pin DIMM installs directly into an available slot on the validated Gigabyte systems. It operates at 1.1V without a heat spreader, leaving adjacent slots clear for further registered ECC expansion.

How it compares

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

Price $3,594.99
Pricier than about 75% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% 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 $28.09 per GB
Pricier than about 79% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number5R6D54R4128G
Total capacity128 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latency46
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsGigabyte R283-S91
Gigabyte R283-S92
Gigabyte R283-S93
Gigabyte R283-S94
Gigabyte R283-S95

Other versions of this model

5 more in the same range

Questions about this item

How much usable capacity does the 128GB module provide in a Gigabyte R283-S91 server?

The module delivers 128GB of registered ECC DDR5 memory, adding a full 128GB to the system when installed in a compatible slot.

What does the PC5-44800 rating mean for actual data rate on this RDIMM?

PC5-44800 certifies a 5600 MT/s transfer rate under JEDEC DDR5 specifications.

Will the 288-pin registered DIMM fit the memory slots on a Gigabyte R283-S94?

Yes, the 288-pin DDR5 RDIMM form factor matches the slots on the R283-S94 and the other listed Gigabyte models.

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