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OWC

OWC 128GB DDR4 3200 CL22 4Rx4 288-pin ECC LRDIMM server RAM

SKU CH-FYYZ-0M9R4

128GB DDR4 3200 ECC load-reduced DIMM for servers, workstations and NAS with 4Rx4 organisation and CL22 latency

  • Total capacity128 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4
  • ECC load-reduced design protects data integrity in servers
  • 128GB capacity expands memory for virtualisation workloads
  • DDR4 3200 speed with CL22 latency boosts throughput
  • 2V operation reduces power draw per module
  • Backward compatible with 2133, 2400, 2666, 2933MHz systems

128 GB DDR4 3200 ECC LRDIMM

This module delivers 128 GB of DDR4 3200 memory with ECC load-reduced architecture. It operates at 1.2 V with a CAS latency of CL22 and uses a 288-pin 4Rx4 configuration. The part is designed for server and workstation platforms that require registered ECC memory.

Server and workstation upgrades only

This memory suits administrators expanding capacity in compatible servers, workstations or NAS systems that accept DDR4 LRDIMMs. It will not work in standard desktop PCs, laptops or any system that uses unbuffered or registered ECC DIMMs. Buyers needing consumer memory should look elsewhere.

Verify LRDIMM support and slot population

Confirm the motherboard or system documentation explicitly lists DDR4 LRDIMM support and the maximum capacity per slot. Ensure the platform can accept 4Rx4 modules and that existing memory is also load-reduced ECC, as mixing types is not supported. Check the qualified vendor list for the 3200 MT/s speed rating.

How it compares

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

Price $796.99
Pricier than about 77% of the 6,523 comparable items (median $188.99).
Total capacity 128 GB
Higher than about 90% of the 6,064 comparable items (median 32 GB).
Price per GB $6.23 per GB
Cheaper than about 61% 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 number3L2D44R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Will this 128GB DDR4 3200 CL22 4Rx4 LRDIMM work in my standard desktop motherboard?

No — this is ECC Load-Reduced memory for servers and workstations only; it will not function in consumer desktop boards that require unbuffered non-ECC DIMMs.

Can I mix this LRDIMM with my existing DDR4 2666 ECC registered modules?

No — Load-Reduced and registered ECC DIMMs cannot be mixed; all slots must use identical LRDIMM technology for the system to operate.

How do I confirm the module is running at 3200 MT/s with CL22 after installation?

Check the BIOS memory information or a tool such as CPU-Z; it should report DDR4-3200, PC4-25600 and CAS latency 22 when the module is operating at its rated speed.

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