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Green bare circuit board DDR4 RDIMM with black memory chips and gold edge contacts

OWC

OWC 32GB DDR4 3200 ECC Registered RDIMM 2Rx4 1.2V for Supermicro MEM-DR432L-CL01-ER32 CL03 CL06 Server RAM

SKU CH-979T-5ATC1

32 GB DDR4 3200 ECC registered RDIMM, 2Rx4 at 1.2 V for Supermicro servers

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • 32GB capacity expands server memory for larger workloads
  • DDR4 3200 speed delivers PC4-25600 bandwidth for data-intensive tasks
  • ECC Registered design detects and corrects errors to protect data integrity
  • 2Rx4 dual-rank organisation increases memory density per slot
  • 2V JEDEC voltage lowers power consumption in continuous operation

OWC 32GB DDR4 3200 ECC RDIMM

This 32GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM is built for Supermicro workstations and servers. It operates at 1.2V with CL22 latency and a 2Rx4 rank configuration across 288 pins. The module lacks a heat spreader and is intended strictly for registered ECC platforms. It will not function in standard desktop computers or alongside unbuffered memory.

Replaces Supermicro MEM-DR432L modules

This upgrade matches the exact specifications of Supermicro part numbers MEM-DR432L-CL01-ER32, MEM-DR432L-CL03-ER32 and MEM-DR432L-CL06-ER32. The jump is worth it when extending the life of existing registered ECC infrastructure or building new server capacity with JEDEC-compliant modules. Mixing with unbuffered DIMMs is not supported and will prevent operation.

DDR4 3200 registered ECC limits

The DDR4 3200 standard caps transfer rates at PC4-25600 for registered ECC modules. Registered buffering adds one cycle of latency but enables higher capacities per channel than unbuffered designs. Systems must support ECC and registered signalling; consumer platforms lacking these features cannot use this memory. All DIMMs should match capacity, speed and manufacturer for optimal stability.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $215.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $6.75 per GB
Cheaper than about 56% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number3R2D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Will the 288-pin DDR4 RDIMM fit my Supermicro server DIMM slots?

Yes, the 288-pin DDR4 RDIMM matches the standard server DIMM slot layout used by the listed Supermicro part numbers.

Do I need to populate all channels identically when installing these 2Rx4 registered modules?

For best stability, install matching 32GB 2Rx4 modules in the same channel configuration the motherboard manual specifies; mixing ranks or speeds can prevent boot.

How long will the ECC registered modules last before they need replacement?

The modules carry a limited lifetime warranty and are built to JEDEC and RoHS standards, so they typically remain in service for the life of the server platform.

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