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

OWC

OWC 16GB DDR4 2666 CL19 ECC UDIMM desktop RAM

SKU CH-HTB7-XYKXG

16 GB DDR4 2666 CL19 ECC unbuffered UDIMM for desktops, workstations, servers and NAS, also runs at 2133 and 2400 MHz

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ECC protection prevents data errors in critical workloads
  • 2666 MHz speed delivers responsive multitasking performance
  • 16 GB capacity handles large files and virtual machines
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2133 MHz and 2400 MHz systems

ECC UDIMM for Workstations and NAS

This 16GB DDR4 module targets workstations, servers and NAS systems that require error-correcting memory. It runs at 2666MHz with CL19 latency and 1.2V operation. The unbuffered design fits standard 288-pin desktop slots.

Thermals and Power in Normal Use

No heat spreader is fitted, so the module relies on case airflow for cooling. At 1.2V the power draw stays low during typical workloads. Silent operation is assured because no active cooling is present.

JEDEC DDR4 2666 CL19 ECC Specification

The single deciding specification is the JEDEC-standard DDR4 2666 CL19 ECC unbuffered profile. It also runs at 2133MHz and 2400MHz for backward compatibility. Verify your platform accepts ECC UDIMMs before purchase.

Points forts

  • ECC protection prevents data errors in critical workloads
  • 2666 MHz speed delivers responsive multitasking performance
  • 16 GB capacity handles large files and virtual machines
  • 2 V operation reduces power draw and heat
  • Backward compatible with 2133 MHz and 2400 MHz systems

Caractéristiques

BrandOWC
Part Number2E6D42R816GB
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

Questions sur cet article

How do I install the 16GB DDR4 2666 CL19 288-pin ECC UDIMM and what step is often missed?

Align the notch on the module with the slot key, press down firmly until both side clips click shut, then verify in BIOS that the speed reads 2666 MHz and ECC is enabled.

What maintenance or replacement will this 1.2V ECC unbuffered module need over time?

No scheduled maintenance is required; keep slots dust-free and replace the module only if system logs report correctable ECC errors that persist after re-seating.

What limit appears first on this CL19 2Rx8 stick during sustained heavy workloads?

The CL19 latency at 2666 MHz sets the throughput ceiling, and the 1.2 V JEDEC voltage prevents further frequency headroom without overclocking support.

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