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Green bare DDR4 RDIMM module 288 pin 16GB 2666MHz CL19 1.2V

OWC

OWC 16GB DDR4 2666 ECC Registered RDIMM 2Rx8 1.2V server RAM

SKU CH-ZARY-7V278

16 GB DDR4 2666 ECC registered RDIMM adds error-correcting memory to servers and workstations

  • Capacity16GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity for dense server configs
  • 16 GB capacity at 2666 MHz boosts throughput for virtualisation
  • JEDEC-standard 1.2 V operation lowers power draw per module
  • Backward compatible with 2133 MHz and 2400 MHz systems

Server-grade DDR4 for workstations and NAS

This 16GB ECC registered RDIMM is built for servers, workstations and NAS systems that require error-correcting memory. It operates at 2666MHz with CL19 latency and a 1.2V supply. The module uses a 288-pin DDR4 form factor and a 2Rx8 rank configuration. It is not compatible with standard desktop computers or unbuffered memory.

Registered ECC limits mixing and platform use

The registered buffer and ECC function mean this module cannot be mixed with unbuffered DIMMs in the same system. It is designed for platforms that explicitly support registered ECC memory. Backward compatibility covers 2133MHz and 2400MHz bus speeds. The part complies with JEDEC PC4-21300 specifications and is RoHS compliant.

16GB capacity per module decides fit

Each DIMM provides 16GB of capacity, so the total memory available depends on how many slots the target system populates. Buyers needing higher per-slot density or a different rank organisation must choose another module. The 2Rx8 layout and registered design are fixed characteristics of this part.

Points forts

  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity for dense server configs
  • 16 GB capacity at 2666 MHz boosts throughput for virtualisation
  • JEDEC-standard 1.2 V operation lowers power draw per module
  • Backward compatible with 2133 MHz and 2400 MHz systems

Caractéristiques

BrandOWC
Part Number2R6D42R816GB
Capacity16GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx8
Heat SpreaderNo

Questions sur cet article

Should I pick the 16GB module or a different capacity for my server upgrade?

This listing is a single 16GB DDR4 2666 ECC Registered RDIMM; choose it when your board has free 288-pin slots and you want to add 16GB per module.

What does the 2666MHz CL19 rating deliver once installed in a compatible system?

The module runs at DDR4 2666 with CL19 latency at 1.2V, providing ECC error correction and registered buffering for stable server and workstation operation.

Is the PC4-21300 DDR4 interface compatible with my Supermicro motherboard that currently runs 2400MHz memory?

Yes, the RDIMM is backward compatible with 2133MHz and 2400MHz DDR4 systems while retaining ECC registered operation at the lower speed.

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