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Two green DDR4 ECC UDIMM sticks without heat spreaders

OWC

OWC 2E6D41R8016P 16GB (2x8GB) DDR4 2666MHz ECC UDIMM CL19 1.2V

SKU CH-HG9A-QZBW9

16 GB DDR4 2666 MHz ECC UDIMM kit, 2 × 8 GB CL19 1.2 V, validated for Synology RackStation SA3200D

  • Capacity16GB (2 x 8GB)
  • Type288-Pin DDR4 ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes

Capacity 16GB (2 x 8GB)

  • 16GB dual-channel kit expands NAS capacity for heavier workloads
  • ECC UDIMM protects data integrity in Synology RackStation SA3200D
  • DDR4 2666MHz CL19 at 1.2V matches OEM speed and voltage
  • 288-pin unbuffered design fits straight into standard DIMM slots
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • backward compatible with 2133MHz and 2400MHz systems

Synology SA3200D memory kit

This 16 GB kit contains two 8 GB DDR4 ECC UDIMM modules built for the Synology RackStation SA3200D. It targets administrators who need error-correcting memory to protect data integrity in a NAS environment. The unbuffered design keeps latency low for typical file-serving workloads.

DDR4 2666 speed ceiling

The modules run at 2666 MHz with a CL19 timing and 1.2 V operation. JEDEC compliance guarantees they will also clock down to 2133 MHz or 2400 MHz if the system requires a lower frequency. No higher DDR4 speeds are supported by this part number.

Tool-free DIMM installation

The 288-pin UDIMM form factor drops into the SA3200D memory slots without cables or brackets. Common issues arise when mixing these sticks with non-ECC or registered memory, which the platform will reject. Always populate matching slots in pairs to maintain dual-channel operation.

Highlights

  • 16GB dual-channel kit expands NAS capacity for heavier workloads
  • ECC UDIMM protects data integrity in Synology RackStation SA3200D
  • DDR4 2666MHz CL19 at 1.2V matches OEM speed and voltage
  • 288-pin unbuffered design fits straight into standard DIMM slots
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • backward compatible with 2133MHz and 2400MHz systems

Specifications

BrandOWC
Part Number2E6D41R8016P
Capacity16GB (2 x 8GB)
Type288-Pin DDR4 ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemSynology RackstationSA3200D

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Questions about this item

Should I pick this 16GB kit or a single 8GB module for my Synology SA3200D?

This kit provides two matched 8GB modules for dual-channel operation, giving the full 16GB capacity the SA3200D supports.

Will the CL19 timing at 2666MHz actually speed up my NAS workloads?

The CL19 latency at DDR4 2666MHz matches the SA3200D specification, so the memory runs at the platform's rated speed without downclocking.

Does the PC4-21300 rating limit what speed the modules run at in my rackstation?

The PC4-21300 rating equals DDR4 2666MHz; the SA3200D memory controller caps operation at that speed, and the modules also support 2133MHz and 2400MHz fallback.

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