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

OWC

OWC 4GB DDR3L 1600 PC3L-12800 CL11 204-pin SODIMM memory upgrade

SKU CH-0631-K3TB3

A 4 GB DDR3L SODIMM running at 1600 MHz with CL11 latency for QNAP TS-963X, TVS-463, TVS-663, TVS-863 and TVS-863+ NAS systems

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 4GB capacity expands multitasking headroom on compatible QNAP NAS
  • DDR3L 1600 speed with CL11 latency delivers responsive data access
  • Low 1.35 V operation reduces power draw and heat output
  • 204-pin SODIMM form factor fits supported TVS and TS models
  • JEDEC and RoHS compliant for warranty-safe, reliable upgrades

4GB DDR3L SODIMM for QNAP NAS

This 4 GB DDR3L module upgrades compatible QNAP TS and TVS network-attached storage units. It targets administrators who need to expand memory on the listed models without changing voltage or form factor.

DDR3L 1600 CL11 1.35 V unbuffered non-ECC

The single decisive specification is the DDR3L 1600 PC3L-12800 CL11 1.35 V unbuffered non-ECC 204-pin SODIMM profile; only systems that accept this exact combination will recognise and run the module correctly.

Sustained operation in multi-user NAS workloads

Under continuous multi-user file serving or virtualization loads the module maintains its rated 1600 MT/s throughput because the low-voltage DDR3L design keeps thermal output stable across extended duty cycles.

How it compares

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

Price $16.99
Cheaper than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.25 per GB
Cheaper than about 83% 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 number1S6T31R804 GB
Total capacity4 GB
Product type204-Pin DDR3L Non-ECC SODIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Memory
CAS latencyCL11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsQNAP TS-963X
QNAP TVS-463
QNAP TVS-663
QNAP TVS-863
QNAP TVS-863+

Other versions of this model

5 more in the same range

Questions about this item

Will the 1600 MHz speed actually run at 1600 MHz in my QNAP TS-963X?

The module is rated DDR3L 1600 PC3L-12800. In the listed QNAP models it will operate at the speed the system's memory controller sets, which cannot exceed the module's 1600 MHz rating.

Is the 204-pin DDR3L interface electrically compatible with the SODIMM slots in a TVS-863+?

Yes. The stick is a 204-pin DDR3L SODIMM running at 1.35 V, matching the slot type and voltage used by the TVS-863+ and the other listed QNAP units.

Does the single 4 GB stick fit the SODIMM socket without a heat spreader interfering with the chassis lid?

The module has no heat spreader, so its height is the standard low-profile SODIMM dimension that clears the tight clearance in the compatible QNAP NAS chassis.

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