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Single green 288-pin DDR4 RDIMM module, black chips, no heat spreader

NEMIX RAM

NEMIX RAM 32GB DDR4 2666MHz CL19 ECC RDIMM Synology FS3600 memory upgrade

SKU CH-BFG4-FK6JP

32 GB DDR4 ECC registered DIMM running at 2666 MHz with CL19 latency for Synology FS3600 NAS upgrades

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 32GB capacity expands Synology FS3600 memory for larger workloads
  • ECC registered design protects data integrity in mission-critical NAS operations
  • DDR4 2666MHz speed matches system specifications for stable performance
  • 2V low-voltage operation reduces power draw in 24/7 environments
  • 288-pin RDIMM form factor ensures direct compatibility with FS3600 slots

32GB DDR4 2666 ECC RDIMM for Synology FS3600

This 32GB registered DDR4 module runs at 2666MHz with CL19 latency and 1.20V operation. It is built for the Synology FlashStation FS3600 NAS and uses 2Rx4 organisation with ECC for data integrity. The 288-pin RDIMM form factor fits the validated memory slots in that platform.

Sustained-load behaviour with registered ECC

Registered buffering reduces electrical load on the memory controller during continuous NAS workloads such as file serving, backup and virtualization. ECC corrects single-bit errors on the fly, preventing silent data corruption under heavy, prolonged throughput. The 1.20V rating keeps power draw stable during extended operation.

Build and daily handling

The module has no heat spreader, so it relies on system airflow for cooling inside the FS3600 chassis. Major OEM chips from Samsung, Micron or Hynix are used depending on supply. The 288-pin RDIMM keying prevents accidental insertion into non-ECC or unbuffered slots, ensuring correct installation every time.

How it compares

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

Price $175.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $5.50 per GB
Cheaper than about 70% 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 RDIMM Registered Server Memory
Part numberMR21300-324K1
Total capacity32 GB
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items32 GB (1 × 32 GB) DDR4 2666 MHz PC4-21300 2Rx4 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How much power does this 1.2 V DDR4 ECC RDIMM draw under continuous load in the FS3600?

The module operates at 1.20 V standard DDR4 voltage; actual power draw depends on the NAS workload and the FS3600 memory controller.

What must my Synology FS3600 already have for this 288-pin registered DIMM to be recognised?

The FS3600 must support DDR4 2666 MHz ECC registered memory and provide a free 288-pin RDIMM slot.

Will this CL19 2Rx4 module work alongside the original FS3600 memory if I keep the factory sticks installed?

Yes, provided the existing modules are also DDR4 2666 MHz ECC registered; the system will run all sticks at the lowest common speed and latency.

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