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Green circuit board with gold contacts and black memory chips

OWC

OWC 4GB DDR3L 1600 CL11 1Rx8 204-pin 1.35V memory upgrade

SKU CH-SEPZ-DB3HG

4GB DDR3L 1600 SODIMM upgrades QNAP TS-463U, TS-463U-RP, TS-563, TS-863U and TS-863U-RP at 1.35V

  • Capacity4GB
  • Type204-Pin DDR3L Non-ECC SODIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCNo
  • 4 GB capacity expands multitasking headroom on compatible QNAP NAS
  • DDR3L 1600 speed at CL11 latency delivers responsive data access
  • Low 1.35 V operation reduces power draw and heat
  • 204-pin SODIMM form factor fits laptop, mini-PC and NAS slots
  • JEDEC and RoHS compliant for warranty-safe, standards-based upgrades

4GB DDR3L SODIMM for QNAP NAS

This 4GB DDR3L 1600 CL11 module is built for QNAP TS-463U, TS-463U-RP, TS-563, TS-863U and TS-863U-RP systems. It uses a 204-pin SODIMM form factor and runs at 1.35V without ECC or buffering. The single-rank 1Rx8 design fits the memory slots in these specific NAS units.

Low-voltage operation keeps thermals steady

At 1.35V the module draws less power than standard DDR3, so heat output stays modest inside a crowded NAS chassis. No heat spreader is fitted, relying on the system’s own airflow to move the small amount of warmth generated during typical file-serving or backup workloads. Silent, passive operation is assured.

Sustained workloads stay within JEDEC limits

The CL11 latency and PC3L-12800 rating are validated for continuous operation at the rated 1600 MT/s. JEDEC compliance means timings and voltage do not drift during long RAID rebuilds, VM hosting or media transcoding sessions. Builders needing ECC protection or capacities above 4GB per slot should look elsewhere.

Highlights

  • 4 GB capacity expands multitasking headroom on compatible QNAP NAS
  • DDR3L 1600 speed at CL11 latency delivers responsive data access
  • Low 1.35 V operation reduces power draw and heat
  • 204-pin SODIMM form factor fits laptop, mini-PC and NAS slots
  • JEDEC and RoHS compliant for warranty-safe, standards-based upgrades

Specifications

BrandOWC
Part Number1S6T31R804GB
Capacity4GB
Type204-Pin DDR3L Non-ECC SODIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemQNAP TS-463U
QNAP TS-463U-RP
QNAP TS-563
QNAP TS-863U
QNAP TS-863U-RP

Other versions of this model

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Questions about this item

How do I install the 204-pin DDR3L SODIMM into my QNAP TS-463U, and which step do people get wrong?

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 often missed is pressing hard enough to fully seat both clips.

What maintenance or replacement will this 4GB 1Rx8 module need later?

No routine maintenance is required; if a memory error appears, run the built-in QNAP memory test and replace the module if it fails.

What limit appears first under sustained use with this CL11 1.35V DDR3L memory?

The CAS latency of CL11 at 1600 MHz sets the timing ceiling; sustained workloads will hit that latency bound before voltage or thermal limits become a factor.

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