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Green circuit board with black memory chips, gold edge connector, no heat spreader

OWC

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

SKU CH-8TZV-QNAZV

A 128GB DDR5 5600 ECC registered RDIMM with CL46 latency and 1.1V operation, validated for Supermicro X13 server and workstation boards

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

Capacity 128GB

  • 128 GB single-module capacity simplifies server upgrades
  • DDR5 5600 speed with CL46 latency supports demanding workloads
  • ECC registered design protects data integrity in critical systems
  • 1 V operation reduces power draw per module
  • Validated for Supermicro X13DEI-T, X13DEM, X13DET-B, X13DGU, X13DSF-A motherboards

Server-grade DDR5 ECC RDIMM

This is a single 128GB DDR5 5600 PC5-44800 CL46 4Rx4 288-pin 1.1V ECC Registered DIMM designed for workstations and servers. It is not compatible with standard desktop computers or with unbuffered and load-reduced memory types.

Fits Supermicro X13 motherboards

The module installs directly into 288-pin DDR5 slots on Supermicro X13DEI-T, X13DEM, X13DET-B, X13DGU and X13DSF-A boards. Registered buffering reduces electrical load on the memory controller, freeing headroom for larger populations per channel.

128GB per module capacity

One DIMM delivers 128GB of ECC-protected memory at JEDEC-standard 5600 MT/s, suited to virtualisation, database and compute workloads. It cannot be mixed with unbuffered or load-reduced DIMMs, so all slots must use registered ECC modules.

How it compares

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

Price $4,067.99
Pricier than about 77% 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 $31.78 per GB
Pricier than about 90% 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 X13DEI-T
Supermicro Motherboard X13DEM
Supermicro Motherboard X13DET-B
Supermicro Motherboard X13DGU
Supermicro Motherboard X13DSF-A

Other versions of this model

5 more in the same range

Questions about this item

What is the CAS latency that limits sustained throughput on this DDR5 5600 module?

The module operates at CL46, which is the primary timing that determines how quickly the memory controller can access data under continuous load.

How much power and heat does a single 128GB 1.1V registered DIMM generate when running all day?

At 1.1V the DIMM draws minimal power and runs without a heat spreader, so thermal output stays low even in densely populated server chassis.

Which specific Supermicro motherboards must I already own for this 288-pin ECC RDIMM to work?

It is validated for the X13DEI-T, X13DEM, X13DET-B, X13DGU and X13DSF-A platforms; other boards are not guaranteed to support this 4Rx4 registered module.

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