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Four green 240-pin DDR3 server memory modules with gold contacts

OWC

OWC 32GB (4x8GB) DDR3 1866 CL13 ECC Registered RDIMM server RAM

SKU CH-EAQ4-1Y6ZV

Four 8 GB DDR3-1866 ECC registered RDIMMs totalling 32 GB for servers and workstations

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR3 1866 (PC3 14900)
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 32GB (4 x 8GB)

Rank 1Rx4

  • ECC registered design protects data integrity in servers
  • 1866 MHz DDR3 speed with CL13 latency supports responsive workloads
  • 32 GB quad-channel kit expands memory capacity for virtualization
  • 5 V JEDEC standard voltage ensures broad platform compatibility
  • 240-pin registered DIMM form factor fits select workstations and servers

32 GB DDR3-1866 ECC Registered Kit

This OWC kit supplies 32 GB of DDR3 1866 registered ECC memory across four 8 GB modules. It uses 240-pin RDIMMs rated at PC3-14900 with CL13 latency and 1.5 V operation. The modules are unbuffered-rank 1Rx4 and carry no heat spreader. They are built for workstations, servers, NAS systems and routers that require registered ECC DDR3.

Suits registered-ECC DDR3 platforms.

Buyers maintaining or expanding servers, workstations or NAS units that accept 240-pin registered ECC DDR3 will find a direct JEDEC-compliant upgrade here. Systems that need unbuffered non-ECC memory, a different DDR generation, SODIMM form factor or higher speeds cannot use this kit. Mixing these registered modules with unbuffered DIMMS is also unsupported.

Registered ECC with 1Rx4 organisation

The single specification that decides fit is the registered ECC RDIMM design with 1Rx4 rank structure. Only platforms explicitly qualified for 240-pin DDR3 1866 registered ECC memory at 1.5 V can accept this kit; all other memory controllers will reject it.

How it compares

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

Price $84.99
Cheaper than about 74% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $2.66 per GB
Cheaper than about 91% 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 number1R8D31R4032S
Total capacity32 GB (4 × 8 GB)
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1866 (PC3 14900)
Memory
CAS latencyCL13
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Kit configurationDual Channel Kit
Heat spreaderNo
Power
Rated voltage1.5 V

Other versions of this model

5 more in the same range

Questions about this item

Should I buy the 32GB kit as four 8GB modules or look for a different capacity?

This kit provides 32GB total across four 8GB modules, giving you four populated slots for maximum bandwidth on compatible platforms.

What does the 1866MHz speed mean for actual server workloads?

The modules run at DDR3 1866 (PC3-14900) with CL13 latency, delivering the rated throughput when the platform memory controller supports that frequency.

Will the 240-pin registered ECC interface work in my workstation?

These are 240-pin DDR3 ECC registered DIMMs at 1.5V; they require a workstation or server board that supports registered memory and cannot be mixed with unbuffered modules.

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