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Four green DDR4 ECC UDIMM sticks, 288-pin, no heat spreader

OWC

OWC 64GB (4x16GB) DDR4 2666 ECC UDIMM memory upgrade for Synology RackStation SA3200D

SKU CH-WBWM-SHGEK

64 GB kit of four 16 GB DDR4 2666 ECC UDIMM modules for Synology RackStation SA3200D

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8

Capacity 64GB (4 x 16GB)

  • 64GB total capacity from four 16GB modules for expanded NAS workloads
  • DDR4 2666MHz PC4-21300 CL19 speed matches Synology SA3200D requirements
  • ECC unbuffered design protects data integrity in always-on environments
  • 2V operation reduces power draw and heat in rackmount chassis
  • JEDEC-standard 288-pin UDIMM ensures warranty-safe drop-in compatibility

Synology SA3200D memory kit

This 64 GB kit contains four 16 GB DDR4 2666 ECC UDIMM modules built for the Synology RackStation SA3200D. It targets administrators who need to expand NAS memory for virtualization, heavy file serving or surveillance workloads. The ECC unbuffered design matches the system's native requirements.

Straightforward DIMM installation

The 288-pin UDIMMs seat in the SA3200D's standard slots without tools; the kit is validated for that model so no firmware update is required. The only common issue is mixing these CL19 2Rx8 sticks with existing modules of different rank or latency, which can prevent the system from posting.

Verify slot count and current population

Confirm the SA3200D has four free DIMM slots or plan to replace all installed memory, because the kit must run as a matched set of four. Check that the chassis airflow reaches the bare modules, as they ship without heat spreaders. Ensure the NAS firmware is current before adding capacity.

How it compares

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

Price $472.99
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 $7.39 per GB
Cheaper than about 55% 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 nameOWC
Part number2E6D42R8064S
Total capacity64 GB (4 × 16 GB)
Product type288-Pin DDR4 ECC UDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology RackstationSA3200D

Other versions of this model

5 more in the same range

Questions about this item

How can I verify the 64GB kit is running at 2666MHz with ECC after installation?

Check the Synology DSM Resource Monitor or BIOS memory details; they should show 64GB total, 2666MHz speed, CL19 timings, 1.2V voltage and ECC active for each 16GB module.

What ships in the box and is anything else required?

The package contains four 16GB 288-pin DDR4 ECC UDIMM modules; no extra parts or tools are needed for the SA3200D memory slots.

Should I choose this 64GB (4×16GB) kit or a different capacity for the SA3200D?

This 64GB kit fills all four slots with matched 16GB 2Rx8 modules, giving the maximum supported capacity for the SA3200D.

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