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Green bare circuit board DDR4 memory stick 288-pin 16GB

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 CL19 ECC UDIMM 1.2V 288-pin memory upgrade for Synology RS2423+

SKU CH-BE33-ABRFK

16 GB DDR4-2666 ECC UDIMM for Synology RS2423+ NAS, CL19, 1.2 V, 288-pin

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection guards data integrity in your NAS
  • 16 GB capacity expands memory for heavier workloads
  • 2666 MHz DDR4 speed matches Synology RS2423+ specifications
  • 2 V operation keeps power draw low
  • 288-pin UDIMM fits the system memory slots

Synology RS2423+ 16 GB DDR4 ECC UDIMM

This 16 GB DDR4 2666 ECC UDIMM is built for the Synology RS2423+ NAS. It runs at 1.2 V with CL19 timing and uses a 288-pin unbuffered design. The module adds capacity for virtualisation, heavy file sharing or database workloads on that platform.

Suits owners expanding RS2423+ memory.

Buyers who need ECC error correction for data integrity in a supported Synology rack unit will benefit. Systems that require registered DIMMs, DDR5 speeds or non-ECC consumer memory cannot use this module. Check your motherboard manual before ordering.

2666 MT/s DDR4 CL19 1.2 V ECC unbuffered spec

The decisive specification is the DDR4 2666 (PC4-21300) CL19 1.2 V ECC unbuffered 288-pin UDIMM format. Matching this exact speed, voltage, latency and ECC type ensures compatibility with the RS2423+ memory controller.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $118.99
Cheaper than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $7.44 per GB
Cheaper than about 55% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSynology Compatible Series NAS Memory
Model nameSynology DDR4 2666 MHz ECC Unbuffered UDIMM
Part numberME21300-628K1
Total capacity16 GB
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 288-PIN ECC Unbuffered UDIMM

Questions about this item

Does the CL19 latency become a bottleneck during sustained heavy workloads on the RS2423+?

CL19 is the rated CAS latency at 2666 MHz; the module runs at this timing continuously under load.

How much heat does the module generate when the NAS runs 24/7 without a heat spreader?

The unbuffered UDIMM operates at 1.2 V with no heat spreader; typical DDR4 power draw at this voltage stays low during constant operation.

Will the 2Rx8 rank configuration work in the RS2423+ memory slots without any other hardware changes?

The 2Rx8 288-pin ECC UDIMM is validated for the Synology RS2423+; install it directly into an available DIMM slot.

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