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Two black DDR4 UDIMM sticks in a dual channel kit

OWC

OWC 16GB (2x8GB) DDR4 2666MHz CL19 desktop RAM

SKU CH-3946-EGANE

A 16GB dual-channel DDR4 kit running at 2666MHz with CL19 latency and 1.2V operation for desktop upgrades

  • Capacity16GB (2x8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • Buffered/RegisteredUnbuffered
  • 16 GB dual-channel kit doubles capacity for smoother multitasking
  • 2666 MHz DDR4 speed keeps data flowing to the CPU
  • CL19 latency delivers responsive timing for everyday workloads
  • 2 V operation reduces power draw and heat output
  • Backward compatible with 2133 MHz and 2400 MHz systems

Kit capacity and purpose

This 16 GB dual-channel kit contains two 8 GB DDR4 modules rated at 2666 MHz with CL19 latency. It is intended for desktop PCs, workstations and NAS systems that use standard 288-pin unbuffered DIMM slots.

Thermals and power in daily use

The modules run at the JEDEC-standard 1.2 V and have no heat spreaders, relying on case airflow for cooling. Power draw remains low during typical office and multitasking workloads, and the memory operates silently with no active cooling components.

Behaviour under sustained load

Rated at PC4-21300 bandwidth, the kit maintains its 2666 MHz speed and CL19 timings during extended sessions. Backward compatibility with 2133 MHz and 2400 MHz platforms allows the modules to down-clock automatically when installed in slower systems.

Besonderheiten

  • 16 GB dual-channel kit doubles capacity for smoother multitasking
  • 2666 MHz DDR4 speed keeps data flowing to the CPU
  • CL19 latency delivers responsive timing for everyday workloads
  • 2 V operation reduces power draw and heat output
  • Backward compatible with 2133 MHz and 2400 MHz systems

Technische Daten

BrandOWC
Part Number2U6D41R8016P
Capacity16GB (2x8GB)
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseDesktops
LED ColorNone

Fragen zu diesem Artikel

How do I install the 288-pin UDIMM modules and what step do people get wrong?

Power off the PC, open the case, align the notch on each module with the slot key, press firmly until the retention clips click on both sides; the common mistake is stopping before both clips engage fully.

What maintenance or replacement will the 16GB dual-channel kit need later?

No scheduled maintenance is required; the modules are non-ECC unbuffered DDR4 with no moving parts, so replacement is only needed if a stick fails or you decide to increase capacity beyond 16GB.

What limit shows up first under sustained use with these CL19 2666MHz modules?

The primary limit is the CL19 latency at 2666MHz; under continuous heavy workloads the fixed timing and 1.2V operation cap throughput before thermal throttling becomes a factor.

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