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

OWC

OWC 3R2D42R816GB 16GB DDR4 3200MHz ECC RDIMM

SKU CH-2MHY-9YTSQ

16GB DDR4 3200MHz ECC registered DIMM for Supermicro H11SSL, H11SSW and H12DSG motherboards

  • Capacity16GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 16GB

  • 16GB
  • 32GB
  • 64GB
  • 128GB

Struck-through versions exist but are not stocked here.

  • 16GB capacity expands server memory headroom
  • DDR4 3200MHz speed delivers high-throughput data rates
  • ECC registered design protects data integrity in critical workloads
  • 2V operation reduces power draw per module
  • Validated for Supermicro H11SSL-i, H11SSL-NC, H11SSW-iN, H12SSW-iN, H12DSG-O-CPU

Compatible Supermicro server upgrade

This 16GB DDR4 3200MHz ECC RDIMM is built for Supermicro motherboards H11SSL-i, H11SSL-NC, H11SSW-iN, H12SSW-iN and H12DSG-O-CPU. It targets administrators extending the life of existing server infrastructure or building new systems that require registered error-correcting memory. The module replaces several Supermicro part numbers including MEMDR416LCL01ER32 and MEMDR416LHL02ER32.

Installation notes and common pitfalls

The 288-pin DIMM installs like any standard server module, but it must not be mixed with unbuffered memory and will not work in standard desktop computers. Builders should confirm the motherboard model matches the supported list and populate slots with identical capacity, speed and manufacturer modules for optimal stability. Using mismatched DIMMs is the most frequent cause of boot failures.

Sustained load behaviour

Registered ECC operation corrects single-bit errors in real time, maintaining data integrity during continuous workloads. The CL22 latency at 1.2V delivers consistent throughput without the voltage drift seen in consumer modules under prolonged stress. This makes the kit suitable for virtualisation hosts, database servers and other roles where uptime matters more than peak burst speed.

Highlights

  • 16GB capacity expands server memory headroom
  • DDR4 3200MHz speed delivers high-throughput data rates
  • ECC registered design protects data integrity in critical workloads
  • 2V operation reduces power draw per module
  • Validated for Supermicro H11SSL-i, H11SSL-NC, H11SSW-iN, H12SSW-iN, H12DSG-O-CPU

Specifications

BrandOWC
Part Number3R2D42R816GB
Capacity16GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSupermicro Motherboard H11SSL-i
Supermicro Motherboard H11SSL-NC
Supermicro Motherboard H11SSW-iN
Supermicro Motherboard H12SSW-iN
Supermicro Motherboard H12DSG-O-CPU

Other versions of this model

5 more in the same range

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

Questions about this item

How can I confirm the 3200MHz ECC RDIMM is running at CL22 after installation?

Enter the BIOS or UEFI on your Supermicro H11SSL-i, H11SSL-NC, H11SSW-iN, H12SSW-iN or H12DSG-O-CPU and verify the memory speed shows DDR4 3200 (PC4 25600) with CAS latency 22 at 1.2V.

What does the box contain and what must I source separately?

The package includes one 16GB 288-pin DDR4 3200MHz ECC Registered RDIMM module (part 3R2D42R816GB); no heat spreader, cables, tools or additional DIMMs are supplied.

Which capacity should I choose if I want to match the Supermicro part numbers MEMDR416LCL01ER32 and MEMDR416LHL02ER32?

Select the 16GB DDR4 3200MHz CL22 1.2V 2Rx8 ECC Registered RDIMM, as it directly replaces those Supermicro part numbers.

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