We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with black memory chips, no heat spreader, gold edge connector, 288 pins

NEMIX RAM

NEMIX RAM 16GB DDR4 2666 ECC RDIMM 1Rx4 CL19 1.2V 288-Pin Synology SA3600 memory upgrade

SKU CH-64B9-1K6TG

16 GB DDR4 2666 ECC RDIMM with CL19 latency and 1.2 V operation, validated for Synology SA3600 systems

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL19
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 16 GB DDR4 2666 ECC RDIMM boosts Synology SA3600 capacity
  • Registered 1Rx4 design with CL19 latency ensures data integrity
  • 2 V low-voltage operation reduces server power draw
  • Major OEM Samsung, Micron or Hynix chips deliver enterprise reliability
  • 288-pin DDR4 form factor installs directly into SA3600 slots

Synology SA3600 ECC RDIMM Upgrade

This 16 GB DDR4 2666 module is built specifically for the Synology SA3600 NAS. It uses ECC registered RDIMM technology to protect data integrity in always-on storage workloads. The single 1Rx4 rank runs at 1.2 V with a CL19 latency profile.

Verify Slot Count and Population Rules

Before ordering, confirm how many memory slots your SA3600 chassis provides and whether the existing configuration requires matched pairs or specific slot ordering. The system accepts 288-pin DDR4 RDIMMs only, so UDIMM or SO-DIMM modules will not fit. Check the current firmware version as well, because some revisions enforce strict vendor whitelists.

Sustained Load Stability With ECC Correction

Under continuous operation the registered buffer reduces electrical load on the memory controller, keeping signal quality consistent during long backup or replication jobs. ECC circuitry corrects single-bit errors on the fly, preventing silent data corruption that can accumulate over days of heavy throughput. The 1.2 V operating point helps maintain thermal headroom inside the compact NAS enclosure.

How it compares

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

Price $99.99
Cheaper than about 68% 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 $6.25 per GB
Cheaper than about 63% 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 RDIMM Registered Server Memory
Part numberMR21300-614K1
Total capacity16 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 rank1Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology
In the box
Included items16 GB (1 × 16 GB) DDR4 2666 MHz PC4-21300 1Rx4 1.2 V CL19 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Does the package include anything besides the single 16 GB DDR4 2666 ECC RDIMM module?

The package contains only one 16 GB DDR4 2666 ECC RDIMM module; no heat spreader, cables or additional components are included.

Should I choose the 1Rx4 CL19 version or a different rank and latency for my Synology SA3600?

This 1Rx4 CL19 module matches the SA3600 qualified configuration; other rank or latency combinations are not validated for that system.

Will the rated 2666 MT/s speed actually run at 2666 once installed in the SA3600?

The SA3600 memory controller operates DDR4 at 2666 MT/s, so the module will run at its rated 2666 speed without down-clocking.

More in Model-Specific Memory Upgrades

Similar items