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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 32GB DDR4 2933MHz ECC Registered RDIMM 2Rx4 CL21 1.2V server RAM

SKU CH-NFKH-7Y2JB

32GB DDR4 ECC registered RDIMM runs at 2933MHz CL21 with 1.2V for servers and workstations

  • Total capacity32 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC registered design protects data integrity in servers
  • 32 GB capacity expands memory for demanding workloads
  • 2933 MHz DDR4 speed matches PC4-23400 bandwidth
  • 2 V operation reduces power draw per module
  • Backward compatible with 2133, 2400 and 2666 MHz systems

32 GB DDR4 ECC Registered RDIMM

This 32 GB DDR4 2933 MHz module is built for servers, workstations and NAS systems that require ECC registered memory. It operates at 1.2 V with CL21 latency and a 2Rx4 rank configuration. The 288-pin RDIMM will not work in standard desktop computers or alongside unbuffered modules.

Thermals noise and power draw

Running at the JEDEC-standard 1.2 V keeps power draw low and heat output minimal without a heat spreader. Registered buffering reduces electrical load on the memory controller, helping stability in densely populated slots. No active cooling is required for normal server or workstation workloads.

Backward compatibility and compliance

The module is validated for backward compatibility with 2133, 2400 and 2666 MHz platforms, allowing mixed-speed deployments. Full JEDEC and RoHS compliance ensures a warranty-safe upgrade that meets OEM specifications. Each unit is tested in-house before shipment.

How it compares

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

Price $212.99
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 $6.66 per GB
Cheaper than about 57% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How do I install this 288-pin DDR4 RDIMM and what step is often missed?

Align the notch with the slot key, press firmly until both retention clips click, then verify the system detects 32 GB at 2933 MHz in BIOS.

What maintenance or replacement will this 32 GB ECC registered module need later?

No routine maintenance is required; replace only if memory diagnostics report uncorrectable errors or the module fails POST.

What limit appears first when this CL21 1.2 V RDIMM runs under sustained load?

The CAS latency of CL21 at 2933 MHz sets the timing boundary before thermal or voltage limits are reached.

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