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Green bare circuit board with black memory chips and gold edge connectors

OWC

OWC 3R2D42R432GB 32GB DDR4 3200 ECC Registered RDIMM 2Rx4 1.2V

SKU CH-TED0-DHGKY

32 GB DDR4 3200 ECC registered RDIMM, CL22, 1.2 V, 2Rx4, 288-pin, compatible with Samsung M393A4K40DB2-CWE, M393A4K40DB3-CWE and M393A4K40EB3-CWE

  • Capacity32GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes
  • ECC protection keeps data integrity intact on 32GB DDR4 3200 modules
  • Registered RDIMM design supports 2Rx4 rank for multi-socket server boards
  • 2V operation at CL22 lowers power draw per DIMM
  • 288-pin JEDEC layout matches Samsung M393A4K40DB2-CWE part numbers
  • Lifetime warranty with free tech support backs every OWC upgrade

Server DDR4 Upgrade Module

The OWC 3R2D42R432GB is a 32GB DDR4 3200 ECC Registered RDIMM built for workstation and server platforms that require registered memory. It operates at 1.2V with a CL22 latency and uses a 2Rx4 rank configuration across 288 pins. This module is not compatible with standard desktop computers that only accept unbuffered DIMMs.

Registered ECC Requirement

The single specification that decides fitment is the registered ECC design; the module will only work in systems that explicitly support registered DDR4 DIMMs with ECC enabled. Mixing this stick with unbuffered memory is not supported and will prevent the system from posting. Buyers who need memory for a consumer desktop or laptop cannot use this part.

Sustained Load Behaviour

Under continuous workloads the module maintains JEDEC-standard 3200 MT/s throughput at 1.2V without a heat spreader, relying on server chassis airflow for thermal management. The 2Rx4 organisation allows the memory controller to interleave ranks for steady bandwidth during long compute runs. Error correction operates continuously to detect and correct single-bit errors without interrupting service.

Highlights

  • ECC protection keeps data integrity intact on 32GB DDR4 3200 modules
  • Registered RDIMM design supports 2Rx4 rank for multi-socket server boards
  • 2V operation at CL22 lowers power draw per DIMM
  • 288-pin JEDEC layout matches Samsung M393A4K40DB2-CWE part numbers
  • Lifetime warranty with free tech support backs every OWC upgrade

Specifications

BrandOWC
Part Number3R2D42R432GB
Capacity32GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo

Questions about this item

How does the 3200 MT/s speed translate once the module is installed?

The module runs at DDR4 3200 with CL22 latency and 1.2 V, so it delivers its rated throughput when the platform operates at that speed.

What does the PC4-25600 designation cap in practice?

PC4-25600 is the JEDEC bandwidth rating for DDR4 3200; the module will not exceed that rate on any platform.

Will this 288-pin RDIMM fit my server board?

It uses the standard 288-pin DDR4 RDIMM form factor, so it fits any slot that accepts registered ECC DDR4 DIMMs.

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