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Green 288-pin DDR5 ECC registered DIMM circuit board with black chips no heat spreader

OWC

OWC 128GB DDR5 5600 CL46 4Rx4 1.1V ECC RDIMM upgrade

SKU CH-N9XZ-64Q69

A single 128GB DDR5 5600 CL46 4Rx4 1.1V ECC registered RDIMM upgrade for compatible Supermicro workstation and server motherboards

  • Capacity128GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 5600 (PC5 44800)
  • CAS Latency46
  • Voltage1.1V
  • ECCYes

Capacity 128GB

  • 128 GB capacity lets you run large workloads on a single module
  • DDR5 5600 speed delivers high throughput for server tasks
  • ECC registered design protects data integrity in critical systems
  • 1 V operation reduces power draw under load
  • Validated for Supermicro X13 motherboards for reliable compatibility

Server memory upgrade

This OWC module adds 128GB of DDR5 capacity in a single 288-pin registered DIMM. It is built for Supermicro X13 motherboards such as the X13DAI-T, X13DDW-A, X13DEG-M, X13DEG-OA and X13DEG-OAD. The ECC registered design targets workstations, servers and NAS systems that require error correction. Standard desktop platforms cannot use this memory.

Build integration

The stick plugs into a standard DDR5 RDIMM slot and runs at 1.1V, matching the JEDEC PC5-44800 specification. It must not be mixed with unbuffered or load-reduced ECC modules. Populating one slot leaves remaining channels free for further expansion. Compatibility is limited to the listed Supermicro boards and similar registered-ECC platforms.

Thermals and power

Operating at the standard 1.1V keeps power draw low for a 128GB registered module. No heat spreader is fitted, so airflow across the PCB handles cooling in a typical server chassis. The CL46 latency at 5600 MT/s is within JEDEC limits, producing no unusual thermal load. Acoustic impact is negligible in fan-cooled enclosures.

Highlights

  • 128 GB capacity lets you run large workloads on a single module
  • DDR5 5600 speed delivers high throughput for server tasks
  • ECC registered design protects data integrity in critical systems
  • 1 V operation reduces power draw under load
  • Validated for Supermicro X13 motherboards for reliable compatibility

Specifications

BrandOWC
Part Number5R6D54R4128G
Capacity128GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 5600 (PC5 44800)
CAS Latency46
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X13DAI-T
Supermicro Motherboard X13DDW-A
Supermicro Motherboard X13DEG-M
Supermicro Motherboard X13DEG-OA
Supermicro Motherboard X13DEG-OAD

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What is the first bottleneck that appears when this 128 GB DDR5 5600 CL46 module runs at full load for hours?

The CL46 latency at 5600 MT/s is the primary timing limit; sustained throughput cannot exceed the JEDEC PC5-44800 rating of this registered ECC DIMM.

How much heat and power does the 1.1 V registered 4Rx4 module produce during all-day operation?

At 1.1 V the module draws low power for its 128 GB density, and with no heat spreader it relies on chassis airflow to stay within JEDEC thermal limits.

Which motherboard must already be installed for this 288-pin RDIMM to function?

It is validated for Supermicro X13DAI-T, X13DDW-A, X13DEG-M, X13DEG-OA and X13DEG-OAD motherboards that support DDR5 registered ECC memory.

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