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Green rectangular DDR4 server memory module with gold contacts and black chips, no heat spreader

OWC

OWC 32GB DDR4 2666MHz CL19 2Rx4 ECC Registered RDIMM 1.2V 288-pin Server RAM

SKU CH-VF85-58YH4

32 GB DDR4 2666 MHz ECC registered RDIMM for servers and workstations, CL19 latency at 1.2 V, backward compatible with 2133 MHz and 2400 MHz

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB

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Rank 2Rx4

  • 32GB capacity expands server memory headroom for demanding workloads
  • DDR4 2666MHz speed delivers high bandwidth for data-intensive tasks
  • ECC registered design detects and corrects errors to protect data integrity
  • 2V operation reduces power draw and heat in dense configurations
  • Backward compatible with 2133MHz and 2400MHz systems for flexible deployment

Server memory upgrade

This 32GB DDR4 module is built for servers, workstations and NAS systems that require registered ECC memory. It will not work in standard desktop computers and cannot be mixed with unbuffered modules.

Registered ECC RDIMM

The single rank 2Rx4 registered DIMM provides error correction and signal buffering required by multi-socket server platforms. Standard desktop boards lack the chipset support for this registered ECC configuration.

Low-voltage operation

Rated at 1.2V, the module runs at standard DDR4 voltage without a heat spreader. Backward compatibility with 2133MHz and 2400MHz systems allows installation in older platforms while maintaining JEDEC-compliant thermal limits.

How it compares

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

Price $216.99
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 $6.78 per GB
Cheaper than about 55% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number2R6D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

What does the 2666MHz speed mean once the module is installed in a server?

The module runs at 2666MHz by default and will downclock to 2400MHz or 2133MHz if the platform requires a lower speed.

How does the PC4-21300 rating affect real-world bandwidth?

PC4-21300 is the JEDEC peak transfer rate for DDR4-2666; actual throughput depends on the memory controller and channel configuration.

What physical slot and clearance does this 288-pin RDIMM need?

It fits a standard DDR4 288-pin RDIMM socket and has no heat spreader, so it clears most CPU coolers and dense server chassis.

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