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Green 204-pin DDR3L SODIMM module with black chips

A-Tech

A-Tech 4GB DDR3L 1866MHz CL13 1.35V 204-Pin SODIMM Synology D3NS1866L-4G PC3L-14900 1Rx8 NAS laptop RAM

SKU CH-J1V4-CGW62

4 GB DDR3L 1866 MHz SODIMM module with CL13 latency and 1.35 V operation for Synology NAS upgrades

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3L 1866 (PC3L 14900)
  • CAS LatencyCL13
  • Voltage1.35V
  • ECCNo
  • 4GB capacity expands NAS multitasking headroom
  • DDR3L 1866MHz speed accelerates data throughput
  • CL13 latency sharpens memory response times
  • 35V low voltage reduces system power draw
  • 204-pin SODIMM form factor fits compatible Synology NAS slots

Synology NAS memory upgrade

This 4GB DDR3L SO-DIMM module is built as a direct replacement for Synology D3NS1866L-4G. It targets NAS owners and laptop users who need to expand system memory with a compatible low-voltage stick. Buyers who require ECC error correction or registered buffering cannot use this unbuffered non-ECC design.

Low-voltage DDR3L thermal profile

Operating at 1.35V reduces power draw and heat output compared with standard DDR3 modules running at higher voltage. The CL13 latency at 1866MHz delivers responsive data access for typical NAS workloads and everyday multitasking. Systems that only accept 1.5V DDR3 will not support this module.

Tested major-brand chips

Each stick uses major-brand DRAM components and undergoes quality-assurance testing before shipment to ensure reliable operation in supported platforms. The package contains the single 204-pin SO-DIMM module only, with no additional brackets, tools or software utilities included.

Points forts

  • 4GB capacity expands NAS multitasking headroom
  • DDR3L 1866MHz speed accelerates data throughput
  • CL13 latency sharpens memory response times
  • 35V low voltage reduces system power draw
  • 204-pin SODIMM form factor fits compatible Synology NAS slots

Caractéristiques

BrandA-Tech
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3L 1866 (PC3L 14900)
CAS LatencyCL13
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
FeaturesMajor Brand Chips
Recommend UseAMD & Intel Compatible

Questions sur cet article

How do I install this 204-pin SODIMM in my Synology NAS and which step is most often missed?

Power off the NAS, unplug it, open the chassis, align the notch on the module with the slot key, press firmly until the side clips click, then reassemble — the step most people skip is pressing hard enough to fully seat both clips.

Will this DDR3L 1866MHz module need any maintenance or replacement during its service life?

No routine maintenance is required; the module has no moving parts and uses major-brand chips, so it should run for the lifetime of the NAS unless a physical fault develops.

What limit appears first when this 1.35V CL13 memory runs under sustained heavy workloads?

The 4GB capacity ceiling is reached before any thermal or voltage limit, causing the system to swap to disk once the working set exceeds the installed memory.

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