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Green 288-pin DDR4 ECC registered RDIMM module with black memory chips and gold contacts

OWC

OWC 128GB DDR4 3200 ECC Registered RDIMM CL22 1.2V 8Rx4 288-pin memory upgrade

SKU CH-1W1P-G73E0

128 GB DDR4 3200 ECC Registered RDIMM for ASRock barebone servers, CL22 1.2 V 8Rx4 288-pin

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • 128GB single module maximises server capacity
  • ECC registered design protects data integrity in workloads
  • DDR4 3200 CL22 1.2V delivers efficient high-speed performance
  • 288-pin RDIMM fits ASRock 1U and 2U barebone servers
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

128 GB DDR4 ECC RDIMM for ASRock servers

This OWC module delivers 128 GB of DDR4 3200 registered ECC memory in a single 288-pin RDIMM. It is built for the listed ASRock barebone servers and similar workstation or NAS platforms that require registered error-correcting DIMMs.

Suits admins upgrading compatible ASRock 1U

It will not work in standard desktop PCs, consumer laptops or any system that accepts only unbuffered or load-reduced DIMMs. Builders needing non-ECC memory or a different form factor should look elsewhere.

Registered ECC with 8Rx4 organisation at 1.2 V

The module runs at DDR4 3200 (PC4-25600) with CL22 latency and is backward compatible with 2133, 2400, 2666 and 2933 MHz operation. The registered 8Rx4 design and ECC function are the decisive compatibility factors.

How it compares

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

Price $774.99
Pricier than about 57% 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 22
Typical for this category: the median of 483 items is 22.
Price per GB $6.05 per GB
Cheaper than about 65% of the 20,941 comparable items (median $8.19 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 number3R2D48R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latency22
ECC supportYes
Buffer typeRegistered
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASRock Barebone Server 1U10E-ICX/2T
ASRock Barebone Server 1U12E-ICX2
ASRock Barebone Server 1U2N2G-ROME/2T
ASRock Barebone Server 1U4L4E-ROME/2T
ASRock Barebone Server 2U16S8E-ICX2

Questions about this item

Will the 128GB DDR4 3200 ECC Registered RDIMM need replacement after a certain period of server operation?

The module has no scheduled replacement interval; it is built to JEDEC and RoHS standards with a limited lifetime warranty from OWC.

What limit appears first when the 8Rx4 1.2V RDIMM runs continuously in an ASRock 1U barebone server?

Thermal throttling is the first limit; the module lacks a heat spreader, so sustained loads in dense 1U chassis depend on chassis airflow to keep temperatures in check.

How much noise and heat does the 288-pin DDR4 3200 CL22 module add when the server runs all day?

The DIMM itself is silent and draws 1.2V; any audible noise or extra heat comes from the server fans ramping up to cool the memory under load.

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