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Two green DDR4 UDIMM sticks, no heat spreaders, gold contacts visible

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2666MHz ECC Unbuffered UDIMM CL19 1.2V 288-Pin Synology Compatible Memory Upgrade

SKU CH-0YD5-K7CD5

A 16 GB DDR4 2666 MHz ECC unbuffered UDIMM kit with CL19 latency and 1.2 V operation for Synology NAS upgrades

  • Capacity16GB (2 x 8GB)
  • SpeedDDR4 2666 (PC4 21300)
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.20V
  • ECC protection guards data integrity with built-in error correction
  • 2666 MHz DDR4 speed handles demanding NAS workloads
  • 2 V operation reduces power draw and heat output
  • 16 GB dual-channel kit expands Synology capacity instantly
  • Major OEM chips ensure stable 24/7 operation

Synology NAS Memory Kit

This NEMIX RAM kit provides 16GB of DDR4 ECC unbuffered memory in a matched pair of 8GB modules. It is built for Synology NAS units that require 2666MHz PC4-21300 UDIMMs with CL19 timing and 1.2V operation.

Fits 288-Pin DDR4 Slots

The modules install directly into standard 288-pin DDR4 DIMM sockets on compatible Synology motherboards. ECC functionality works with platforms that support error-correcting unbuffered memory, leaving other slots free for further expansion if the chassis allows.

Tested Module Assurance

Each stick is stress-tested under load using major OEM DRAM from Samsung, Micron or Hynix before shipping. The kit arrives as a validated 2x8GB pair so the NAS can run in dual-channel mode without the user sourcing and matching individual modules.

Points forts

  • ECC protection guards data integrity with built-in error correction
  • 2666 MHz DDR4 speed handles demanding NAS workloads
  • 2 V operation reduces power draw and heat output
  • 16 GB dual-channel kit expands Synology capacity instantly
  • Major OEM chips ensure stable 24/7 operation

Caractéristiques

BrandNEMIX RAM
SeriesSynology Compatible Series NAS Memory
ModelSynology DDR4 2666MHZ ECC Unbuffered UDIMM
Part NumberME21300-818K2
Capacity16GB (2 x 8GB)
SpeedDDR4 2666 (PC4 21300)
ECCYes
Buffered/RegisteredUnbuffered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.20V
Compatible SystemSynology
CAS LatencyCL19
Heat SpreaderNo
Type288-Pin DDR4 ECC UDIMM
Rank1Rx8
FeaturesDDR4 ECC Unbuffered UDIMM Motherboard Compatible
Package Content16GB (2X8GB) DDR4 2400MHZ PC4-19200 1Rx8 1.2V CL19 288-PIN ECC Unbuffered UDIMM KIT

Questions sur cet article

What is the CAS latency of these DDR4 2666 modules?

The kit runs at CL19 latency, which is the standard timing for DDR4 2666 ECC unbuffered memory.

How much heat will these modules produce without a heat spreader during continuous operation?

They operate at the standard 1.20 V DDR4 voltage, so thermal output matches typical unbuffered ECC UDIMMs and relies on chassis airflow for cooling.

Which Synology NAS models are confirmed compatible with this 288-pin ECC UDIMM kit?

The kit is validated for Synology systems that accept DDR4 2666 ECC unbuffered UDIMMs, such as those using the D4EC-2666-8G part number.

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