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Green rectangular circuit board with gold edge connectors and black memory chips

OWC

OWC 2GB DDR3L 1866 CL13 1Rx8 204-pin 1.35V Non-ECC SODIMM memory upgrade

SKU CH-3VCX-5DSYN

Adds 2 GB of DDR3L 1866 CL13 memory to compatible Synology NAS units including DS218+, DS418play, DS620slim, DS718+ and DS918+ models

  • Capacity2GB
  • Type204-Pin DDR3L Non-ECC SODIMM
  • SpeedDDR3L 1866 (PC3L 14900)
  • CAS LatencyCL13
  • Voltage1.35V
  • ECCNo
  • Boosts NAS responsiveness with 2GB DDR3L 1866 CL13 module
  • Low 1.35V operation cuts power draw and heat
  • Fits DS218+, DS418play, DS620slim, DS718+, DS918+
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • Simple DIY install with 204-pin SODIMM form factor

Compatible NAS Memory Upgrade

This OWC module adds 2 GB of DDR3L memory to Synology NAS models DS218+, DS418play, DS620slim, DS718+ and DS918+. It is a single 204-pin SODIMM rated at 1866 MHz with CL13 latency and 1.35 V operation. The unbuffered, non-ECC design matches the factory specification for these systems.

Suitable For Single-Slot Expansion

Owners of the listed Synology units who need a modest capacity increase will find this upgrade straightforward to install. Builders requiring higher densities, dual-rank modules or ECC error correction should look elsewhere, as this stick provides only 2 GB in a single-rank 1Rx8 configuration.

1Rx8 Rank And 1.35 V Voltage

The module uses a 1Rx8 organisation and runs at the DDR3L standard voltage of 1.35 V. A system that demands a different rank structure or a 1.5 V DDR3 module will not accept this part, making those two specifications the decisive compatibility check.

Highlights

  • Boosts NAS responsiveness with 2GB DDR3L 1866 CL13 module
  • Low 1.35V operation cuts power draw and heat
  • Fits DS218+, DS418play, DS620slim, DS718+, DS918+
  • JEDEC and RoHS compliant for warranty-safe upgrade
  • Simple DIY install with 204-pin SODIMM form factor

Specifications

BrandOWC
Part Number1S8T31R802GB
Capacity2GB
Type204-Pin DDR3L Non-ECC SODIMM
SpeedDDR3L 1866 (PC3L 14900)
CAS LatencyCL13
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemSynology NAS DS218+
Synology NAS DS418play
Synology NAS DS620slim
Synology NAS DS718+
Synology NAS DS918+

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Questions about this item

Does the module ship alone or with any extra hardware?

The package contains a single 2GB DDR3L 1866 SODIMM; no tools, cables or additional modules are included.

My NAS has two slots — should I add one 2GB stick or two?

Each stick is 2GB; adding one raises capacity by 2GB while adding two doubles that increase to 4GB total.

What does the 1866 speed rating actually deliver in a Synology DS918+?

The module runs at 1866 MT/s with CL13 latency at 1.35V, matching the JEDEC PC3L-14900 spec the NAS expects.

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