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Green 288-pin DDR4 RDIMM module, 16GB, no heat spreader

OWC

OWC 3R2D42R816GB 16GB DDR4 3200 ECC Registered RDIMM 2Rx8 CL22 1.2V

SKU CH-0GAY-241Z0

Adds 16 GB of DDR4 3200 ECC registered RDIMM to servers and workstations with CL22 latency at 1.2 V

  • Total capacity16 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx8
  • 16 GB capacity for demanding server workloads
  • DDR4 3200 speed with PC4-25600 bandwidth
  • ECC registered design protects data integrity
  • 2Rx8 dual-rank organisation increases density
  • 2 V operation reduces power draw

16GB DDR4 3200 ECC Registered RDIMM

This OWC module delivers 16GB of DDR4 3200 (PC4-25600) memory in a 288-pin registered DIMM format. It operates at CL22 latency and 1.2V with 2Rx8 organisation and on-die ECC. The stick is built to JEDEC specifications and matches Hynix HMA82GR7CJR8N-XN and HMA82GR7DJR8N-XN part numbers. It carries no heat spreader.

Suited for servers and workstations needing

This memory is designed for platforms that require registered ECC DIMMs and will not function in standard desktop boards that accept only unbuffered modules. It cannot be mixed with unbuffered memory in the same system. Buyers who need non-ECC or unbuffered DDR4 for a consumer motherboard should look at a different product.

Steady throughput under continuous server workloads

Registered buffering reduces electrical load on the memory controller, helping sustain bandwidth during prolonged multi-threaded tasks. ECC corrects single-bit errors on the fly, preventing data corruption during extended uptime. The 1.2V operation keeps thermals manageable without a heat spreader in adequately ventilated chassis.

How it compares

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

Price $97.99
Cheaper than about 70% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $6.12 per GB
Cheaper than about 62% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number3R2D42R816 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

Does my motherboard need 288-pin DDR4 slots that support ECC registered RDIMMs to use this 16GB module?

Yes, this is a 288-pin DDR4 ECC registered RDIMM. It requires a motherboard with DDR4 slots that accept registered ECC memory and will not work in standard desktop boards that only take unbuffered DIMMs.

Can I add this 2Rx8 CL22 1.2V stick alongside older DDR4 registered ECC modules of different speeds or ranks?

Mixing ranks, speeds, or CAS latencies is possible but the system will run all modules at the slowest common settings. For best stability OWC recommends matching capacity, speed, and manufacturer across every installed DIMM.

How can I confirm the module is running at 3200 MT/s with ECC active after installation?

Enter the system BIOS or UEFI and check the reported memory speed and ECC status. Operating-system tools such as dmidecode on Linux or CPU-Z on Windows will also show 3200 MT/s, CL22, 1.2 V, and ECC enabled.

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