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Two green DDR4 ECC SODIMM modules in static bags

OWC

OWC 16GB (2x8GB) DDR4 2666MHz ECC SODIMM Synology FS1018

SKU CH-TSZC-SB8ZJ

ECC DDR4 SODIMM kit adds 16 GB at 2666 MHz CL19 to Synology FlashStation FS1018

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 16GB (2 x 8GB)

  • ECC protection guards data integrity with 2666 MHz DDR4 modules
  • 16 GB dual-channel kit boosts NAS multitasking capacity
  • 2 V low-voltage design reduces power draw and heat
  • JEDEC-standard build ensures warranty-safe Synology FS1018 compatibility
  • Unbuffered SODIMM format allows straightforward DIY installation

16 GB DDR4 ECC SODIMM kit for Synology FS1018

This kit provides 16 GB of DDR4 2666 ECC unbuffered memory in two 8 GB modules. It is built for the Synology FlashStation FS1018 NAS and follows JEDEC PC4-21300 CL19 specifications at 1.2 V.

Suits administrators expanding a FlashStation FS1018

The modules fit owners who need ECC protection for data integrity on that specific model. Builders targeting other NAS units, workstations or laptops should look elsewhere because the kit is validated only for the FS1018 platform.

Verify your FS1018 has free SODIMM slots

Check that the NAS accepts 260-pin DDR4 SODIMMs and that the firmware supports 2666 MHz operation with CL19 timing. The kit is backward compatible with 2400 and 2133 MHz systems if your unit currently runs at those speeds.

How it compares

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

Price $120.99
Cheaper than about 65% 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 $7.56 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 nameOWC
Part number2C6D41R8016P
Total capacity16 GB (2 × 8 GB)
Product type260-Pin DDR4 ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology FlashstationFS1018

Other versions of this model

5 more in the same range

Questions about this item

Will these 260-pin DDR4 SODIMM modules fit the two memory slots in my Synology FlashStation FS1018?

Yes, the kit is built for the FS1018 and provides two 8 GB modules that occupy both SODIMM slots for a total of 16 GB.

My FS1018 currently runs 2400 MHz ECC memory; will the 2666 MHz CL19 sticks down-clock and run stably alongside it?

The modules are backward compatible with 2400 MHz and 2133 MHz speeds, so they will operate at the lower frequency when mixed with existing RAM.

How can I confirm the NAS recognises the full 16 GB and that ECC is active after installation?

After rebooting, open DSM Control Panel → Info Center; the Memory section should show 16 GB total and list the modules as ECC Unbuffered.

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