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Green rectangular DDR5 RDIMM module with black chips and gold contacts, no heat spreader

OWC

OWC 128GB DDR5 5600 CL46 4Rx4 ECC Registered RDIMM memory upgrade

SKU CH-WGAK-8FKRQ

128GB DDR5 5600 ECC registered RDIMM for Gigabyte E163-S30, E263-S30, E283-S90, G293-S40 and G293-S41 servers

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

Capacity 128GB

  • 128 GB capacity in a single module expands server memory density
  • DDR5 5600 speed with CL46 latency delivers high throughput for demanding workloads
  • ECC registered design protects data integrity in workstation and server environments
  • 1 V operation reduces power draw while maintaining JEDEC-standard performance
  • Validated for Gigabyte E163-S30, E263-S30, E283-S90, G293-S40 and G293-S41 systems

Server-grade DDR5 ECC RDIMM

This 128GB DDR5 5600 CL46 module is built for Gigabyte E163-S30, E263-S30, E283-S90, G293-S40 and G293-S41 platforms. It delivers registered ECC reliability for workstations, servers, NAS units and network switches. The single 4Rx4 DIMM operates at 1.1V and meets JEDEC PC5-44800 standards.

Thermals and power in normal use

Running at the specified 1.1V, the module draws minimal power for its density and produces low heat without a spreader. Registered buffering reduces electrical load on the memory controller, helping system thermals stay stable during sustained server workloads. Silent operation is assured as the DIMM has no moving parts.

The deciding specification: registered ECC

This memory is registered ECC DDR5 and will not work in standard desktop boards or alongside unbuffered or load-reduced DIMMs. Buyers needing consumer DDR5, non-ECC modules or mixed-rank populations must choose a different product. Compatibility is limited to the listed Gigabyte server models.

How it compares

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

Price $3,690.99
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 $28.84 per GB
Pricier than about 81% 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 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 E163-S30
Gigabyte E263-S30
Gigabyte E283-S90
Gigabyte G293-S40
Gigabyte G293-S41

Other versions of this model

5 more in the same range

Questions about this item

How do I install this 288-pin DDR5 ECC Registered RDIMM in a Gigabyte E163-S30 and what step is often missed?

Power down, open the chassis, align the module key with the slot, press firmly until both latches click, then verify in BIOS that the 128 GB 4Rx4 module is detected at 5600 MT/s with ECC active.

What maintenance or replacement will this 1.1 V DDR5 5600 CL46 module need over its service life?

No scheduled maintenance is required; keep airflow clear of the 288-pin slots and replace the module only if memory diagnostics report uncorrectable ECC errors.

What limit appears first when this 128 GB 4Rx4 registered DIMM runs sustained workloads in a Gigabyte G293-S40?

The registered buffer adds one cycle of latency, so memory-controller throughput saturates before the DRAM cells reach thermal limits.

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