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Green rectangular DDR4 memory module with gold edge connector and black chips on both sides

OWC

OWC 128GB DDR4 2133 PC4-17000 CL15 8Rx4 288-pin 1.2V ECC Load Reduced DIMM memory upgrade

SKU CH-PM4Q-W8D0D

Single 128GB DDR4 2133MHz ECC Load-Reduced DIMM for Fujitsu Primequest 2400E3 and 2800E3 servers

  • Total capacity128 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank8Rx4
  • 128GB single module expands server memory capacity
  • ECC load-reduced design protects data integrity in critical workloads
  • DDR4 2133 CL15 speed matches Fujitsu Primequest 2400E3 and 2800E3 specifications
  • 2V operation reduces power draw for dense configurations
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server-Specific ECC LRDIMM

This OWC module is a 128GB DDR4 2133 PC4-17000 CL15 8Rx4 288-pin 1.2V ECC Load Reduced DIMM designed for Fujitsu Primequest 2400E3 and 2800E3 servers. It targets administrators extending the life of qualified enterprise infrastructure with a single high-density stick.

Load-Reduced Interface Constraints

The LRDIMM buffer reduces electrical load on the memory bus but requires a platform engineered for Load Reduced memory. It cannot be mixed with unbuffered or standard registered ECC modules. Only systems explicitly validated for DDR4 LRDIMM at 2133 MT/s will recognise and operate this module correctly.

128GB Single-Module Capacity

One stick delivers 128GB, letting a compatible server reach large memory footprints with fewer occupied slots. Workloads such as virtualisation hosts or in-memory databases benefit from the density. Systems limited to lower per-slot maxima or restricted total DIMM counts will not be able to use the full capacity.

How it compares

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

Price $703.99
Pricier than about 56% 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).
Price per GB $5.50 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2L1D48R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeLoad Reduced
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsFujitsu Primequest 2400E3
Fujitsu Primequest 2800E3

Questions about this item

Should I pick a single 128GB module or combine smaller DIMMs to reach the same capacity?

This is a single 128GB DDR4 2133 CL15 8Rx4 288-pin 1.2V ECC Load Reduced DIMM; adding smaller modules would mix ranks and load types, which the manufacturer warns against.

What does the 2133MHz rating deliver in a Fujitsu Primequest 2400E3 or 2800E3?

The module runs at DDR4 2133 (PC4-17000) with CL15 latency, providing the exact JEDEC-standard throughput those Primequest systems expect from ECC Load Reduced memory.

How does the ECC Load Reduced interface affect maximum supported capacity per channel?

The 8Rx4 Load Reduced design reduces electrical load on the memory bus, allowing the Primequest 2400E3 and 2800E3 to populate more slots per channel than standard Registered DIMMs would permit.

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