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

OWC

OWC 32GB DDR4 2666MHz ECC Registered RDIMM 2Rx4 CL19 1.2V 288pin memory upgrade

SKU CH-5HG2-KW3J8

32 GB DDR4-2666 ECC registered RDIMM for Supermicro X11SRA series motherboards

  • Capacity32GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 32GB

  • ECC registered design prevents data corruption in servers
  • 32 GB capacity expands memory for virtualisation workloads
  • DDR4 2666 MHz CL19 matches Supermicro X11SRA specifications
  • 2 V operation reduces power draw in dense racks
  • Backward compatible with 2133 MHz and 2400 MHz systems

32GB DDR4 ECC RDIMM for Supermicro X11SRA

This 32GB DDR4 2666MHz ECC Registered RDIMM is built for Supermicro X11SRA, X11SRA-F and X11SRA-RF motherboards. It delivers 288-pin registered memory with error correction for servers, workstations and NAS systems that require data integrity. The module runs at 1.2V with CL19 latency and a 2Rx4 rank configuration. It is not compatible with standard desktop computers or unbuffered memory.

Replaces Supermicro MEM-DR432L series modules

This module replaces Supermicro part numbers including MEM-DR432LC-ER26, MEMDR432LCL01ER26 and related LCL, LHL and LSL variants. The upgrade is worth it when existing memory is at capacity or when adding ECC protection to a supported platform. Backward compatibility with 2133MHz and 2400MHz systems allows installation in older DDR4 slots while running at the lower speed.

Fits X11SRA platforms with registered DIMM slots

The RDIMM installs directly into 288-pin registered DIMM slots on the listed Supermicro boards. No heat spreader is included, so airflow in the chassis should be adequate for dense configurations. Using registered ECC memory frees the memory controller from single-bit error handling and enables larger total capacities per channel. Mixing with unbuffered DIMMs is not supported.

Highlights

  • ECC registered design prevents data corruption in servers
  • 32 GB capacity expands memory for virtualisation workloads
  • DDR4 2666 MHz CL19 matches Supermicro X11SRA specifications
  • 2 V operation reduces power draw in dense racks
  • Backward compatible with 2133 MHz and 2400 MHz systems

Specifications

BrandOWC
Part Number2R6D42R432GB
Capacity32GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11SRA
Supermicro Motherboard X11SRA-F
Supermicro Motherboard X11SRA-RF

Other versions of this model

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Questions about this item

Does the 288pin 2Rx4 RDIMM fit the DIMM slots on a Supermicro X11SRA-F motherboard?

Yes, the module is a 288pin DDR4 ECC Registered DIMM built for the Supermicro X11SRA, X11SRA-F and X11SRA-RF platforms.

What is the correct seating procedure for this registered ECC module, and which step is most often missed?

Align the notch with the slot key, press straight down until both retention clips click, then verify the system sees the full 32GB at 2666MHz; the missed step is skipping the clip check.

When should this ECC Registered RDIMM be replaced in a server running 24/7?

Replace it if the system logs uncorrectable ECC errors or if a memory diagnostic reports persistent faults after re-seating the module.

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