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Four green circuit boards with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM 64GB (4x16GB) DDR4 2666 ECC UDIMM for Synology SA3200D memory upgrade

SKU CH-SWXV-Q077V

Four 16 GB DDR4 ECC UDIMM modules running at 2666 MT/s with CL19 latency and 1.2 V for Synology SA3200D NAS

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeUnbuffered
  • Rated voltage1.2 V
  • 64 GB total capacity for large NAS workloads
  • Four 16 GB modules fill all slots in the SA3200D
  • ECC protection guards data integrity in mission‑critical storage
  • DDR4 2666 speed with CL19 timing matches system specs
  • Low 1.20 V operation reduces power draw and heat

Synology SA3200D memory kit

This 64 GB kit contains four 16 GB DDR4 2666 ECC unbuffered UDIMMs built for the Synology SA3200D NAS. Each module runs at 1.2 V with CL19 latency and a 2Rx8 organisation. The kit targets administrators who need to expand the appliance to its supported memory ceiling.

Tool-free DIMM installation

The SA3200D chassis exposes the memory slots after the top cover is removed, so the modules press straight into the 288-pin sockets without tools. ECC unbuffered sticks must be seated fully until the retention clips click; a partial seat is the most common cause of a no-post or degraded-mode boot.

64 GB total capacity for heavy workloads

Four ranks per channel give the NAS enough headroom for large file-system caches, deduplication tables and multiple virtual machines. The limit is reached when the SA3200D firmware reports the maximum supported memory, after which additional modules cannot be recognised.

How it compares

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

Price $514.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $8.05 per GB
Typical for this category: the median of 20,941 items is $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 UDIMM
Part numberME21300-628K4
Total capacity64 GB (4 × 16 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 items64 GB (4 × 16 GB) DDR4 2666 MHz PC4-21300 2Rx8 1.2 V CL19 288-PIN ECC Unbuffered UDIMM KIT

Questions about this item

How do I verify the 2666 MHz DDR4 ECC UDIMM kit is running correctly after installing it in my Synology SA3200D?

After installation, open DSM, go to Info Center > Memory and confirm the system reports 64 GB total capacity, 2666 MHz speed and ECC enabled for all four modules.

What comes in the package and is any additional hardware required for installation?

The box contains four 16 GB DDR4 2666 ECC UDIMM modules (part ME21300-628K4). No extra cables, brackets or tools are needed; the modules insert directly into the SA3200D memory slots.

Which capacity option should I choose for a full 64 GB upgrade on the Synology SA3200D?

Select the 64 GB (4 x 16 GB) kit to populate all four slots and reach the maximum supported memory for the SA3200D.

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