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Green bare circuit board DDR5 RDIMM with black memory chips and gold edge contacts

OWC

OWC 32GB DDR5 4800 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM server RAM

SKU CH-F1AJ-P9KMB

Single 32 GB DDR5 4800 CL40 ECC registered RDIMM at 1.1 V for compatible servers and workstations

  • Capacity32GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 32GB

  • 32 GB capacity handles large server workloads
  • DDR5 4800 speed delivers high memory bandwidth
  • ECC registered design protects data integrity
  • CL40 latency at 1.1 V balances response and efficiency
  • JEDEC compliant module ensures broad server compatibility

Server ECC RDIMM Upgrade

This is a 32GB DDR5 4800 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM designed for select workstations and servers. It is not compatible with standard desktop computers and cannot be mixed with unbuffered or load-reduced memory types.

Thermals and Power

The module operates at the JEDEC standard 1.1V without a heat spreader, relying on the system's airflow for cooling. Registered buffering reduces electrical load on the memory controller, contributing to stable power draw during sustained server workloads.

Capacity and Registration

The single 32GB rank configuration uses 2Rx4 organization with registered ECC to support data integrity in multi-module server environments. Buyers needing unbuffered memory or desktop compatibility should look elsewhere.

Highlights

  • 32 GB capacity handles large server workloads
  • DDR5 4800 speed delivers high memory bandwidth
  • ECC registered design protects data integrity
  • CL40 latency at 1.1 V balances response and efficiency
  • JEDEC compliant module ensures broad server compatibility

Specifications

BrandOWC
Part Number4R8D52R432GB
Capacity32GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the 288-pin DDR5 RDIMM and what step is often missed?

Align the notch on the module with the slot key, press firmly until both retention clips click, then verify in BIOS that ECC Registered mode is active — skipping the BIOS check is the common error.

What maintenance or replacement will this 32GB module need later?

No scheduled maintenance is required; if a memory test ever flags correctable errors, replace the module — otherwise it runs for the system life.

What limit appears first under sustained load on this CL40 1.1V kit?

The JEDEC DDR5 4800 transfer rate and CL40 latency are the fixed ceiling; sustained workloads cannot exceed the rated 4800 MT/s bandwidth.

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