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Two green DDR4 ECC UDIMM sticks, no heat spreaders

OWC

OWC 16GB (2x8GB) DDR4 2666 ECC UDIMM memory upgrade for Synology RS2418+ RS2418RP+

SKU CH-0G2V-PDGBY

16 GB dual-channel DDR4 ECC UDIMM kit running at 2666 MHz for Synology RS2418+ and RS2418RP+ NAS systems

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

Capacity 16GB (2 x 8GB)

  • 16 GB kit expands NAS capacity for larger workloads
  • Dual 8 GB modules enable dual-channel throughput
  • DDR4 2666 CL19 matches Synology RS2418+ and RS2418RP+ specs
  • ECC unbuffered design protects data integrity in RAID arrays
  • 2 V low voltage reduces power draw and heat

Synology RackStation RS2418+

This kit adds 16 GB of DDR4 ECC UDIMM memory to compatible Synology RackStation models RS2418+ and RS2418RP+. It is built for NAS administrators who need more capacity for virtual machines, containers or heavy file workloads. The modules run at 2666 MHz with CL19 latency and 1.2 V operation. Buyers using other Synology units or non-ECC platforms cannot use this kit.

Two matched 8 GB modules

The pair delivers 16 GB in a dual-channel configuration, each module rated PC4-21300 at 2666 MHz with CL19 timing. ECC protection corrects single-bit errors to keep data intact on always-on NAS hardware. JEDEC and RoHS compliance means the upgrade is warranty-safe for the supported RackStation models. Backward compatibility lets the modules run at 2133 MHz or 2400 MHz if the system requires it. No heat spreaders are included, so airflow in the chassis must handle cooling.

Tool-free DIMM installation with standard clearance

Installation follows the usual 288-pin UDIMM process: power down, open the chassis, align the notch and press until the latches click. The low-profile design fits the standard memory slots in the RS2418+ and RS2418RP+ without interfering with drive trays or expansion cards. Common issues are forgetting to seat both latches fully or mixing these ECC modules with non-ECC memory, which disables error correction. OWC provides a basic installation video for reference.

Pontos fortes

  • 16 GB kit expands NAS capacity for larger workloads
  • Dual 8 GB modules enable dual-channel throughput
  • DDR4 2666 CL19 matches Synology RS2418+ and RS2418RP+ specs
  • ECC unbuffered design protects data integrity in RAID arrays
  • 2 V low voltage reduces power draw and heat

Especificações

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 RackstationRS2418+
Synology RackstationRS2418RP+

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Perguntas sobre este artigo

Will the 1.2V DDR4 modules need any firmware updates or scheduled replacement in the Synology RS2418+?

No firmware updates are required for the JEDEC-standard DDR4 ECC UDIMMs, and memory modules have no scheduled replacement interval under normal NAS operation.

What limits sustained throughput first — the CL19 latency or the 2666 MT/s bus speed?

The 2666 MT/s DDR4 bus speed sets the maximum bandwidth ceiling, while CL19 latency affects access time; sustained workloads hit the bus-speed limit before latency becomes the bottleneck.

How much extra heat and power do the two 8 GB sticks add when the RS2418RP+ runs 24/7?

Each module operates at 1.2 V without a heat spreader, adding only a few watts total and negligible heat inside the rack chassis.

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