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Green rectangular DDR4 RDIMM with black chips on both sides, gold edge connector, no heat spreader

OWC

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

SKU CH-3YY0-HZVC3

16 GB DDR4 ECC registered RDIMM for servers, workstations and NAS at 2133 MHz CL15

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC protection prevents data corruption in servers
  • Registered design supports heavy multi-module workloads
  • 16 GB capacity expands server memory headroom
  • 2133 MHz DDR4 speed matches Hynix OEM specs
  • 2 V operation lowers power draw per module

Server memory upgrade for ECC registered systems

This OWC 16GB DDR4 module is built for servers, workstations and NAS devices that require registered ECC memory. It will not work in standard desktop computers and cannot be mixed with unbuffered modules. Buyers who need non-ECC or unregistered memory should look elsewhere.

Registered ECC with 2Rx4 organisation

The single specification that decides fit is the registered ECC design with a 2Rx4 rank configuration. Systems that demand unbuffered memory or a different rank layout will not accept this module. No other memory type or rank arrangement is supported by this part.

Low-voltage operation at 1.2V

Running at 1.2V, the module draws minimal power and generates little heat under normal server workloads. No heat spreader is fitted, so airflow in the chassis handles cooling silently. Power consumption stays low during typical registered ECC operation.

How it compares

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

Price $109.99
Cheaper than about 66% 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 $6.87 per GB
Cheaper than about 54% 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 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

Questions about this item

What does the 2133MHz speed mean for actual server performance?

The module runs at DDR4 2133MHz with CL15 latency, delivering PC4-17000 bandwidth for registered ECC workloads in compatible servers and workstations.

How does the registered ECC interface affect compatibility?

This DDR4 RDIMM uses registered ECC signalling and must be installed in server, workstation or NAS platforms that support registered memory; it cannot be mixed with unbuffered modules.

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

It requires a standard DDR4 288-pin RDIMM socket and has no heat spreader, so it fits in systems with tight DIMM spacing.

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