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OWC

OWC 16GB (2x8GB) DDR4 2666 CL19 ECC SODIMM memory upgrade

SKU CH-JSK8-WS0WE

A 16 GB DDR4 2666 ECC SODIMM kit for Synology ActiveProtect DP320 and DP340 systems

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latency19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 16 GB dual-channel kit doubles capacity for Synology ActiveProtect DP320 and DP340
  • DDR4 2666 CL19 at 1.2 V runs cool and stable in 24/7 NAS workloads
  • ECC unbuffered design detects and corrects single-bit errors to protect data integrity
  • JEDEC and RoHS compliant modules install without voiding the system warranty
  • Backward compatible with 2400 and 2133 MHz slots for flexible deployment

System-specific DDR4 ECC SODIMM kit

This 16 GB kit contains two 8 GB unbuffered DDR4 2666 CL19 modules built to the 260-pin SODIMM form factor. It is designed for the Synology ActiveProtect DP320 and DP340 platforms where ECC memory is required for data integrity.

DDR4 2666 speed ceiling and backward compatibility

The modules run at 2666 MHz with PC4-21300 bandwidth and CL19 latency at 1.2 V. Systems limited to 2400 MHz or 2133 MHz will down-clock the memory automatically, so peak throughput cannot exceed the host controller’s maximum supported rate.

260-pin ECC SODIMM form factor decides fit

Only platforms accepting 260-pin DDR4 ECC unbuffered SODIMMs can use this kit; desktop DIMM slots, non-ECC SODIMM slots or registered-memory channels will not accept the modules.

How it compares

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

Price $108.99
Cheaper than about 67% 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).
CAS latency 19
Lower than about 70% of the 483 comparable items (median 22).
Price per GB $6.81 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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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 latency19
ECC supportYes
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology ActiveProtect DP320
Synology ActiveProtect DP340

Questions about this item

Is this 16GB kit the right capacity for my Synology ActiveProtect DP320 or DP340?

The kit provides 16GB total as two 8GB modules, matching the supported upgrade for Synology ActiveProtect DP320 and DP340 systems.

Will the DDR4 2666 CL19 rating deliver that speed inside my NAS?

The modules run at DDR4 2666 (PC4-21300) with CL19 latency; if the system only supports 2400MHz or 2133MHz they will downclock automatically.

Does the 260-pin ECC SODIMM interface work with my Synology unit?

Yes — these are 260-pin DDR4 ECC unbuffered SODIMMs at 1.2V, the exact form factor and standard required by the listed Synology models.

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