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Eight green DDR3 ECC registered DIMMs in static bags

OWC

OWC 64GB (8x8GB) DDR3 1866 ECC Registered RDIMM Server RAM

SKU CH-VH7K-XZK5R

Eight 8 GB DDR3 1866 ECC registered RDIMMs totalling 64 GB for servers and workstations

  • Total capacity64 GB (8 × 8 GB)
  • Rated speedDDR3 1866 (PC3 14900)
  • CAS latencyCL13
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 64GB (8 x 8GB)

Rank 1Rx4

  • ECC registered design protects data integrity in servers
  • 64GB kit with eight 8GB modules expands capacity
  • DDR3 1866 PC3-14900 CL13 speed supports demanding workloads
  • 5V operation meets JEDEC standard for compatibility
  • 240-pin RDIMM form factor fits select workstations and servers

Server ECC RDIMM Kit

This 64GB kit provides eight 8GB DDR3 registered DIMMs rated at 1866 MT/s with CL13 latency. It is built for workstations, servers, NAS appliances and routers that require ECC registered memory. The modules operate at 1.5V and conform to JEDEC PC3-14900 specifications. No heat spreaders are fitted.

Suited for ECC platforms only

The registered design and ECC function make this kit suitable for multi-socket servers and error-correcting workloads. It will not work in standard desktop boards that accept only unbuffered non-ECC memory. Builders needing unbuffered DIMMs or higher DDR generations should look elsewhere.

Capacity and headroom

Eight modules populate eight slots for a total of 64GB, giving ample headroom for virtualisation, large databases or memory-intensive file services. The dual-channel kit layout assumes a platform that can address all ranks at the rated speed. Systems limited to fewer slots or lower memory ceilings will not use the full capacity.

How it compares

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

Price $177.99
Typical for this category: the median of 6,523 items is $188.99.
Total capacity 64 GB (8 × 8 GB)
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $2.78 per GB
Cheaper than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number1R8D31R4064K
Total capacity64 GB (8 × 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

What motherboard slot type is required for the 240-pin DDR3 RDIMMs in this kit?

The modules use the standard 240-pin DDR3 DIMM form factor and require a motherboard with registered DIMM slots that support ECC registered memory.

Can I add these CL13 1.5V registered modules to a system that already has unbuffered ECC DDR3 installed?

No, registered and unbuffered ECC memory cannot be mixed; the motherboard must support registered DIMMs exclusively for this kit to function.

How can I verify the full 64GB kit is running at DDR3 1866 with CL13 timings after installation?

Check the BIOS memory information or use a system utility such as CPU-Z to confirm the speed reads 1866 MT/s, CAS latency 13 and all eight 8GB modules are detected.

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