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

OWC

OWC 1S8T32R808GB 8GB DDR3L 1866 CL13 2Rx8 1.35V SODIMM memory upgrade

SKU CH-0K6Q-ZJF5F

8GB DDR3L 1866 CL13 SODIMM for Synology DS218+, DS418play, DS620slim, DS718+ and DS918+ NAS systems

  • Total capacity8 GB
  • Rated speedDDR3L 1866 (PC3L 14900)
  • CAS latencyCL13
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • Boost NAS responsiveness with 8GB DDR3L 1866MHz memory
  • Lower 1.35V operation reduces power draw and heat
  • JEDEC and ROHS compliant for warranty-safe upgrades
  • 2Rx8 dual-rank design maximises bandwidth on compatible Synology models
  • 204-pin SODIMM form factor fits DS218+, DS418play, DS620slim, DS718+, DS918+

Synology NAS DDR3L Upgrade

This OWC module adds 8 GB of DDR3L 1866 memory to compatible Synology DiskStation units. It is built to JEDEC PC3L-14900 CL13 timings and runs at 1.35 V without ECC or buffering.

Fits DS218+ DS418play DS620slim DS718+ DS918+

The 204-pin SODIMM slots straight into the NAS memory socket and requires no configuration changes. Adding capacity frees headroom for simultaneous services such as file sharing, media transcoding and virtual machines.

Ideal for listed DiskStation owners

Buyers with other NAS models or laptops should verify the exact DDR3L 1866 CL13 2Rx8 specification before purchasing. Systems that demand ECC registered DIMMs or a different voltage will not accept this module.

How it compares

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

Price $26.99
Cheaper than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $3.37 per GB
Cheaper than about 88% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number1S8T32R808 GB
Total capacity8 GB
Product type204-Pin DDR3L Non-ECC SODIMM
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Memory
CAS latencyCL13
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsSynology DiskStation DS218+
Synology DiskStation DS418play
Synology DiskStation DS620slim
Synology DiskStation DS718+
Synology DiskStation DS918+

Questions about this item

Does the 1.35V DDR3L module exceed the thermal limit inside a Synology DS918+ running continuously?

The module operates at the standard DDR3L voltage of 1.35V and is listed as compatible with the DS918+, so it stays within the system's thermal design.

How much noise or heat does the 8GB SODIMM add during all-day operation in a DS718+?

The unbuffered DDR3L stick has no heat spreader and draws 1.35V, adding negligible heat and zero acoustic noise to the NAS chassis.

Which specific Synology DiskStation models must I already own for this 204-pin 2Rx8 module to work?

The upgrade is validated for DS218+, DS418play, DS620slim, DS718+ and DS918+; any other system is not confirmed by the manufacturer.

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