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Green bare circuit board DDR4 RDIMM with black memory chips and gold edge connector

OWC

OWC 128GB DDR4 3200MHz ECC Registered RDIMM 288-Pin 4Rx4 1.2V CL22 server RAM

SKU CH-2E19-NZ4N0

128 GB DDR4 3200 MHz ECC registered RDIMM with CL22 latency, 1.2 V operation and 4Rx4 rank for server workloads

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank4Rx4
  • 128GB capacity lets servers handle massive workloads
  • DDR4 3200MHz speed delivers high data throughput
  • ECC registered design protects data integrity in critical systems
  • 2V operation reduces power draw and heat
  • 4Rx4 288-pin RDIMM fits compatible server slots

128GB DDR4 3200MHz ECC Registered RDIMM

This 128GB DDR4 3200MHz ECC Registered RDIMM is built for servers and workstations that require registered, error-correcting memory. It operates at PC4-25600 speed with a CAS latency of CL22 and a voltage of 1.2V. The module uses a 288-pin form factor and a 4Rx4 rank configuration. It is a new component intended as a direct replacement for specific OEM part numbers.

Suits servers needing registered ECC memory.

This memory suits administrators upgrading or repairing server platforms that specifically require DDR4 registered ECC RDIMMs. It will not work in standard desktop computers that accept only unbuffered non-ECC modules. It also cannot be mixed with unbuffered memory in the same system. Buyers who need unbuffered memory for a consumer motherboard should look at a different product type.

No heat spreader; JEDEC and ROHS compliant

The module ships without a heat spreader, relying on standard airflow within the server chassis for cooling. It is fully compliant with JEDEC standard specifications and ROHS directives, ensuring a warranty-safe upgrade path. The component is designed and tested to meet or exceed the original manufacturer OEM specifications for the referenced Supermicro part number. Every module is tested in-house before shipment.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $772.99
Pricier than about 77% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $6.04 per GB
Cheaper than about 63% of the 6,064 comparable items (median $7.25 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 number3R2D44R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

What motherboard slot and chipset must I already have for this 288‑pin DDR4 3200 ECC RDIMM to function?

Your system needs a server or workstation motherboard with 288‑pin DDR4 slots that accept registered ECC memory; standard desktop boards cannot use this module.

Can I keep my existing unbuffered DDR4 DIMMs and add this 4Rx4 registered stick alongside them?

No — registered ECC RDIMMs cannot be mixed with unbuffered memory; all installed modules must be registered ECC of matching specification.

How do I verify the module is running at 3200 MT/s with CL22 latency after installation?

Enter the BIOS/UEFI or use a tool such as CPU‑Z to confirm the memory reports DDR4‑3200, CAS 22, 1.2 V and ECC active.

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