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Green rectangular DDR4 RDIMM module 288 pins 128GB capacity no heat spreader

OWC

OWC 3R2D48R4128G 128GB DDR4 3200 CL22 8Rx4 ECC Registered RDIMM memory upgrade

SKU CH-D4Z7-PW2E4

A 128 GB DDR4 3200 CL22 ECC registered RDIMM for Thinkmate GPX servers and workstations

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latency22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • 128GB single-module capacity for dense server memory
  • DDR4 3200 CL22 speed with 1.2V efficiency
  • ECC registered 8Rx4 design for data integrity
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400, 2666 and 2933MHz systems

Server memory upgrade

The OWC 3R2D48R4128G is a 128GB DDR4 3200 ECC Registered RDIMM designed for specific Thinkmate GPX servers and workstations. It operates at PC4-25600 with CL22 latency and 1.2V. The module uses an 8Rx4 organisation on a 288-pin form factor without a heat spreader. It is validated for the listed XN and XS series systems.

Workstation and server builders only

This memory suits administrators expanding capacity in the compatible Thinkmate GPX platforms. It will not work in standard desktop computers or consumer motherboards. Builders needing unbuffered or load-reduced DIMMs cannot mix those types with this registered module. Buyers without a matching Thinkmate system should select a different kit.

Registered ECC requirement

The single specification that decides fitment is the registered ECC RDIMM interface. The target platform must support DDR4 288-pin registered ECC memory at 3200, 2933, 2666, 2400 or 2133 MT/s. If the system requires unbuffered or LRDIMM modules, this part is incompatible.

How it compares

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

Price $748.99
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 $5.85 per GB
Cheaper than about 67% of the 20,941 comparable items (median $8.19 per GB).

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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 systemsThinkmate GPX XN4-21S3-4GPU
Thinkmate GPX XN6-24S3-10GPU
Thinkmate GPX XS12-24S3-8GPU
Thinkmate GPX XS8-14S3-4GPU
Thinkmate GPX XS8-24S3-4GPU

Questions about this item

How do I install the 288-pin DDR4 ECC Registered RDIMM in my Thinkmate GPX server, and what step is often missed?

Power down the server, open the chassis, align the notch on the 288-pin module with the slot key, press firmly until both retention clips click, then verify in BIOS that the 128GB module is detected at 3200MHz; the step often missed is confirming the memory mode supports 8Rx4 registered DIMMs.

What maintenance or replacement will the 128GB DDR4 3200 CL22 module need over its service life?

No scheduled maintenance is required for the DDR4 ECC Registered RDIMM; replacement is only needed if the module fails or if a capacity upgrade is desired, and the limited lifetime warranty covers defects.

What limit appears first when the 8Rx4 1.2V RDIMM runs sustained workloads on a Thinkmate GPX XN6-24S3-10GPU?

The primary limit is the memory controller's maximum supported rank per channel; with 8Rx4 organisation, population rules may restrict the number of 128GB modules per channel before bandwidth or capacity limits are reached.

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