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Green 288-pin DDR4 ECC UDIMM module with black chips, no heat spreader

OWC

OWC 16GB DDR4 2666MHz ECC UDIMM 2Rx8 CL19 1.2V memory upgrade

SKU CH-CWP2-H934K

Adds 16 GB of DDR4 2666 MHz ECC UDIMM memory to a Synology RS2818RP+ NAS with CL19 latency and 1.2 V operation

  • Capacity16GB (1 x 16GB)
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • 16GB single module expands NAS capacity
  • ECC UDIMM protects data integrity in Synology RS2818RP+
  • DDR4 2666MHz CL19 matches system memory speed
  • 2V JEDEC standard voltage keeps power draw low
  • 288-pin unbuffered design fits straight into compatible slots

16 GB DDR4 ECC UDIMM for Synology RS2818RP+

This 16 GB DDR4 2666 MHz ECC unbuffered UDIMM is built for the Synology RackStation RS2818RP+ and other compatible NAS, workstation or server platforms. It adds error-correcting memory capacity to systems that require 288-pin DDR4 modules running at 1.2 V. Buyers who need non-ECC consumer DIMMs or higher-frequency kits should look elsewhere.

JEDEC-standard module with backward speed support

The stick meets JEDEC and RoHS specs, so it operates at the rated 2666 MHz CL19 timing and also runs stably in slots limited to 2133 MHz or 2400 MHz. No extra software, drivers or heat spreader are included; the upgrade is purely the memory module itself. Systems that demand registered or load-reduced DIMMs will not accept this unbuffered design.

Tool-free slot insertion with standard DDR4 keying

Installation consists of aligning the 288-pin edge connector with the motherboard slot and pressing until the retention clips click. The only common issues are mixing ECC with non-ECC modules or exceeding the platform’s maximum supported capacity per slot, which this single 16 GB module avoids when used as directed.

Puntos fuertes

  • 16GB single module expands NAS capacity
  • ECC UDIMM protects data integrity in Synology RS2818RP+
  • DDR4 2666MHz CL19 matches system memory speed
  • 2V JEDEC standard voltage keeps power draw low
  • 288-pin unbuffered design fits straight into compatible slots

Especificaciones

BrandOWC
Part Number2E6D42R816GB
Capacity16GB (1 x 16GB)
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemSynology RackstationRS2818RP+

Preguntas sobre este artículo

Will the 2Rx8 ECC UDIMM need any firmware updates or periodic replacement in the Synology RS2818RP+?

The module is a JEDEC-standard 288-pin DDR4 2666MHz CL19 1.2V ECC unbuffered DIMM validated for the RS2818RP+. No firmware updates or scheduled replacement are required; it runs for the system's lifetime.

What limit appears first when the RS2818RP+ runs this 16GB stick at full load continuously?

The memory operates at its rated 2666MHz CL19 1.2V specification. The first limit encountered is the module's own speed and latency ceiling, not a thermal or power throttle, because it has no heat spreader and draws standard DDR4 power.

How much heat and noise does the 1.2V DDR4 2666MHz module add when the NAS runs all day?

The stick runs at standard 1.2V DDR4 voltage with no heat spreader, so it adds minimal heat and zero noise. System fan speed stays governed by the RS2818RP+ chassis, not by the memory module itself.

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