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Green printed circuit board with black memory chips and gold edge connectors, no heat spreader

OWC

OWC 5R6D54R4128G 128GB DDR5 5600 CL46 4Rx4 1.1V ECC Registered RDIMM memory upgrade

SKU CH-F2ST-2WQEE

A 128 GB DDR5 5600 CL46 ECC registered RDIMM validated for Supermicro X13SE series motherboards

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

Capacity 128GB

  • 128GB single module maximises server density
  • DDR5 5600 CL46 delivers high throughput at standard voltage
  • ECC registered design protects data integrity in critical workloads
  • 1V operation reduces power draw per DIMM
  • Validated for Supermicro X13SEDW-F and four related boards

Server Memory Upgrade

This is a single 128GB DDR5 5600 CL46 4Rx4 1.1V ECC Registered RDIMM module built to JEDEC standard. It uses a 288-pin form factor and carries the OWC part number 5R6D54R4128G for traceable identification.

Workstation and Server Builders

The module suits technicians upgrading or repairing the listed Supermicro X13 motherboards in workstations, NAS appliances, servers or network switches. It will not work in standard desktop computers and cannot be mixed with unbuffered or load-reduced ECC memory.

Registered ECC Requirement

The deciding specification is the registered ECC design, which the target motherboards require for operation. Installing unbuffered or non-ECC DIMMs instead will prevent the system from booting.

How it compares

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

Price $3,637.99
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 $28.42 per GB
Pricier than about 80% 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 systemsSupermicro Motherboard X13SEDW-F
Supermicro Motherboard X13SEED-F
Supermicro Motherboard X13SEED-SF
Supermicro Motherboard X13SEFR-A
Supermicro Motherboard X13SEI-F

Other versions of this model

5 more in the same range

Questions about this item

What DDR5 speed and CAS latency does the 128GB 5R6D54R4128G module run at?

The module is rated for DDR5 5600 (PC5-44800) with a CAS latency of 46, operating at 1.1V.

Which physical slot and form factor does this 288-pin ECC RDIMM require?

It fits a standard 288-pin DDR5 RDIMM socket on the listed Supermicro X13SEDW-F, X13SEED-F, X13SEED-SF, X13SEFR-A or X13SEI-F motherboards.

What is the correct installation step for this single 128GB 4Rx4 registered DIMM?

Insert the module into the appropriate DDR5 RDIMM slot, ensuring the notch aligns, then press firmly until the retention clips lock; do not mix with unbuffered or load-reduced memory.

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