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Two green circuit boards with black chips, no heat spreaders, gold edge connectors

NEMIX RAM

NEMIX RAM 16GB (2x8GB) DDR4 2666MHz ECC SODIMM 1Rx8 CL19 1.2V 260-pin Synology DS2422+ memory upgrade

SKU CH-BJXW-1C4YX

A 16 GB DDR4 ECC SODIMM kit running at 2666 MHz with CL19 latency and 1.2 V for the Synology DS2422+ NAS

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • ECC protection guards data integrity for critical workloads
  • 16 GB dual-channel kit lifts multitasking headroom for DS2422+
  • 2666 MHz DDR4 speed matches system spec for stable throughput
  • CL19 latency at 1.2 V keeps power draw low
  • 260-pin SODIMM form factor fits NAS memory slots directly

Synology DS2422+ memory upgrade

This kit provides 16 GB of DDR4 ECC SODIMM memory configured as two 8 GB modules. It is built for the Synology DS2422+ NAS and targets administrators who need error-correcting memory for data-integrity workloads. The 260-pin unbuffered design matches the system’s memory slots exactly. No heat spreaders are included.

Sustained 2666 MHz operation with ECC

The modules run at DDR4 2666 (PC4-21300) with a CAS latency of 19 and a voltage of 1.20 V. ECC circuitry detects and corrects single-bit errors during continuous read and write cycles. Unbuffered topology keeps latency low while the major-brand DRAM chips maintain signal integrity under prolonged load. The 1Rx8 organisation supports stable throughput for multi-user NAS services.

Tool-free SODIMM installation

Each module inserts vertically into the DS2422+ memory slots until the side latches click. The low-profile 260-pin form factor clears the chassis cover without force. Common issues are seating the module at an angle or forgetting to power down the NAS before opening the case. Following the Synology owner’s manual avoids both problems.

How it compares

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

Price $109.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB (2 × 8 GB)
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.87 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineSynology Compatible Series NAS Memory
Model nameSynology DDR4 2666 MHz ECC Unbuffered SODIMM
Part numberMSE21300-818K2
Total capacity16 GB (2 × 8 GB)
Product type260-PIN DDR4 ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items16 GB (2 × 8 GB) DDR4 2666 MHz PC4-21300 1Rx8 1.2 V CL19 260-PIN ECC Unbuffered SODIMM KIT

Questions about this item

Does the 1.20 V DDR4 2666 kit run hot or loud in a DS2422+ that operates 24/7?

The modules have no heat spreader and draw 1.20 V at DDR4 2666, so they add minimal heat and produce no noise in a continuously running DS2422+.

What must the DS2422+ already have for this 260-pin ECC SODIMM kit to work?

The DS2422+ needs free 260-pin DDR4 SODIMM slots that accept unbuffered ECC memory; the kit simply plugs into those slots.

Will the CL19 1Rx8 modules work alongside the original 8 GB stick already in my DS2422+?

Yes, the 1Rx8 CL19 2666 MHz modules are designed to run with the DS2422+ memory controller, so they operate together with the factory-installed stick.

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