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

OWC

OWC 16GB DDR4 2133MHz PC4-17000 CL15 2Rx4 ECC Registered RDIMM 1.2V 288-pin server RAM

SKU CH-G4MR-PWX5W

16GB DDR4 ECC registered RDIMM at 2133MHz CL15 for server and workstation upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 16GB

Rank 2Rx4

  • ECC registered design protects data integrity in servers
  • 16GB capacity extends memory headroom for virtualization
  • DDR4 2133MHz speed matches PC4-17000 platform specs
  • 2V operation reduces power draw per module
  • 288-pin RDIMM form factor fits server and workstation slots

Server ECC RDIMM for workstations

This OWC module is a 16GB DDR4 2133MHz PC4-17000 CL15 2Rx4 ECC Registered RDIMM designed for servers, workstations and NAS systems. It operates at 1.2V using the 288-pin form factor and is not compatible with standard desktop computers or unbuffered memory.

JEDEC compliant component only

The package contains a single memory module with no additional accessories, cables or software. Installation simply adds 16GB of registered ECC capacity to a compatible system, extending the service life of existing infrastructure or supporting a new build.

Low-profile registered build

The module has no heat spreader, keeping the height low for dense server chassis. The 288-pin registered interface ensures signal integrity in multi-DIMM configurations, while 1.2V operation reduces power draw in always-on environments.

How it compares

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

Price $104.99
Cheaper than about 67% 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 $6.56 per GB
Cheaper than about 58% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameOWC
Part number2R1D42R416 GB
Total capacity16 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
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

Will the 288-pin RDIMM need any thermal maintenance since it has no heat spreader?

The module has no heat spreader, so ensure the server chassis provides adequate airflow across the DIMM slots; no other thermal maintenance is required.

What speed limit appears first when the 2Rx4 ECC RDIMM runs continuously at 2133 MHz?

The JEDEC-rated 2133 MHz CL15 specification is the operating ceiling; sustained workloads will not exceed this validated frequency.

How much power does the 1.2 V 16 GB DDR4 module draw under all-day load?

At the rated 1.2 V the module operates within standard DDR4 power limits for registered ECC DIMMs; exact wattage varies with workload intensity.

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