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Two green SODIMM sticks side by side, bare circuit boards with gold contacts and black chips

OWC

OWC 32GB (2x16GB) DDR4 2666 ECC SODIMM memory upgrade for Synology ActiveProtect DP320 DP340

SKU CH-FJZS-1X7VK

32 GB dual-channel DDR4-2666 ECC SODIMM kit with CL19 timing and 1.2 V operation for Synology ActiveProtect DP320 and DP340

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latency19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • ECC protection prevents data errors in critical workloads
  • 32 GB total capacity expands multitasking headroom for DP320 and DP340
  • DDR4 2666 speed matches system spec for stable operation
  • 2 V low voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits NAS memory slots directly

32GB DDR4 ECC SODIMM kit

This OWC kit provides 32 GB of DDR4 memory in a matched pair of 16 GB modules. It is built as 260-pin ECC unbuffered SODIMMs rated for 2666 MHz with CL19 latency and 1.2 V operation. The kit is validated for Synology ActiveProtect DP320 and DP340 systems.

For NAS and micro-server upgrades

Administrators expanding memory in a Synology ActiveProtect DP320 or DP340 will find this kit a direct fit. Builders who need registered DIMMs, non-ECC modules, or a different form factor such as 288-pin UDIMMs cannot use these SODIMMs.

ECC unbuffered 260-pin SODIMM

The decisive specification is the combination of ECC error correction with an unbuffered 260-pin SODIMM layout. Only systems that explicitly support unbuffered ECC SODIMMs can accept this memory.

How it compares

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

Price $263.99
Cheaper than about 56% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
CAS latency 19
Lower than about 70% of the 483 comparable items (median 22).
Price per GB $8.25 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameOWC
Part number2C6D42R8032P
Total capacity32 GB (2 × 16 GB)
Product type260-Pin DDR4 ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latency19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology ActiveProtect DP320
Synology ActiveProtect DP340

Questions about this item

Will the 2Rx8 DDR4 2666 ECC SODIMM modules need replacement after a certain period?

The 32GB kit uses JEDEC-standard 1.2V DDR4 ECC chips rated for continuous server workloads; no scheduled replacement is required under normal operating conditions.

What limit appears first when the ActiveProtect DP320 or DP340 runs sustained workloads with this 2666MHz CL19 memory?

The memory controller caps throughput at PC4-21300 speeds, so bandwidth saturation occurs before thermal or voltage limits on these 1.2V unbuffered modules.

How much heat and power do the two 16GB ECC SODIMMs generate during all-day operation in a Synology NAS?

Each 260-pin module draws 1.2V without a heat spreader; typical power stays under 3W per stick, producing minimal heat in the DP320 or DP340 chassis.

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