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A single black 288-pin DDR4 UDIMM module, 16GB, no heat spreader

OWC

OWC 16GB DDR4 2666 ECC Unbuffered UDIMM desktop RAM

SKU CH-YNQX-3S6QR

A 16 GB DDR4 2666 MHz ECC unbuffered UDIMM with CL19 latency and 1.2 V operation for desktop, workstation, server and NAS upgrades

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 16GB

  • 16GB capacity expands multitasking headroom for workstations and NAS
  • DDR4 2666MHz PC4-21300 CL19 delivers responsive data throughput
  • ECC unbuffered design protects data integrity in critical workloads
  • 2V operation reduces power draw and heat output
  • JEDEC and RoHS compliant for warranty-safe system upgrades

ECC Unbuffered UDIMM for Workstations and NAS

This 16GB DDR4 2666 module adds error-correcting memory to desktop PCs, workstations, servers and NAS systems. The single 2Rx8 DIMM runs at PC4-21300 with CL19 latency and 1.2V operation. It is designed as a direct upgrade for compatible OEM platforms including Synology D4EC-2666-16G and D4EU01-16G.

Verify DDR4 Slot Count and ECC Support

Before ordering, confirm your motherboard or NAS chassis accepts 288-pin DDR4 UDIMMs and enables ECC functionality in BIOS. The module is backward compatible with 2133MHz and 2400MHz bus speeds, so it will clock down if the platform requires a lower frequency. Ensure an empty slot is available for the single-stick installation.

Low-Voltage Operation Without Heat Spreader

At 1.2V the module draws minimal power and runs cool enough to operate without a heat spreader in typical chassis airflow. JEDEC-standard construction and RoHS compliance ensure stable thermals during continuous workloads in servers or NAS units. Acoustic impact is negligible because the DIMM has no moving parts.

Points forts

  • 16GB capacity expands multitasking headroom for workstations and NAS
  • DDR4 2666MHz PC4-21300 CL19 delivers responsive data throughput
  • ECC unbuffered design protects data integrity in critical workloads
  • 2V operation reduces power draw and heat output
  • JEDEC and RoHS compliant for warranty-safe system upgrades

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

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Questions sur cet article

Does the module arrive as a single 16GB stick or a kit of multiple sticks?

The upgrade consists of one 16GB DDR4 2666 PC4-21300 CL19 2Rx8 288-pin 1.2V ECC unbuffered DIMM.

Should I pick this 16GB 2666MHz CL19 module or a different capacity for my NAS?

This part delivers 16GB at DDR4 2666 with CL19 timing; select it when your NAS or workstation requires exactly that capacity and speed.

What does the 2666MHz rating actually deliver once the DIMM is installed in a compatible desktop or NAS?

The module runs at 2666 MT/s with CL19 latency at 1.2V, and will also operate at 2400 or 2133 MT/s if the platform requires a lower speed.

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