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Two green DDR3 SODIMM modules side by side

NEMIX RAM

NEMIX RAM 8GB (2x4GB) DDR3 1600MHz PC3-12800 1.35V 204-Pin SODIMM Kit memory upgrade

SKU CH-8RKM-VRSM9

An 8 GB DDR3 SODIMM kit with two 4 GB modules running at 1600 MHz and 1.35 V for Synology NAS systems

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL11
  • Buffer typeUnbuffered
  • Rated voltage1.35 V
  • 8 GB kit expands NAS capacity for heavier workloads
  • DDR3 1600 speed matches Synology specifications for stable operation
  • 35 V low-voltage modules reduce power draw and heat
  • 204-pin SODIMM form factor fits Synology RackStation and DiskStation bays
  • 2Rx8 dual-rank organisation enables full 8 GB density per slot

Synology NAS Memory Kit

This 8 GB kit contains two 4 GB DDR3 SODIMM modules built for Synology RackStation and DiskStation NAS units. It targets administrators who need to expand system memory for virtualisation, file caching or multi-user workloads without replacing the appliance.

CL11 Unbuffered Modules

Each stick runs at 1600 MHz with CAS latency 11 at 1.35 V, using major-brand Samsung, Micron or Hynix chips in a 2Rx8 layout. The non-ECC unbuffered design matches the memory controller in supported Synology models so the NAS recognises the full capacity immediately.

204-Pin SODIMM Form Factor

The low-profile modules have no heat spreader, allowing them to fit side by side in tight NAS chassis slots. Installation follows the standard SODIMM procedure described in the Synology owner's manual and requires no additional tools or configuration changes.

How it compares

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

Price $46.99
Cheaper than about 78% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.87 per GB
Cheaper than about 67% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSynology Compatible Series NAS Memory
Model nameSynology DDR3 1600 MHz Non-ECC Unbuffered SODIMM NAS Memory
Part numberMS12800-428K2
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SODIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL11
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Memory rank2Rx8
Power
Rated voltage1.35 V
Compatibility
Compatible systemsSynology
In the box
Included items8 GB (2 × 4 GB) DDR3 1600 MHz PC3-12800 2Rx8 1.35 V 204-PIN Non-ECC Unbuffered SODIMM KIT

Questions about this item

Does this 204-pin DDR3 kit need any firmware updates or component swaps later?

No firmware updates are required; the modules are stress-tested and carry a lifetime replacement warranty if a stick ever fails.

What limit appears first when the Synology NAS runs this CL11 memory at 1600 MHz continuously?

The CAS 11 latency at DDR3 1600 sets the timing ceiling before bandwidth or thermal limits are reached.

How much heat or fan noise does the 1.35 V SODIMM pair add during all-day NAS operation?

Low-voltage 1.35 V unbuffered chips run cool without heat spreaders, so the NAS fans stay at their normal idle speed.

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