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

OWC

OWC 4GB DDR3L 1600 CL11 204-pin 1.35V SODIMM for Synology DS1019+

SKU CH-VCZQ-67EZ6

A 4 GB DDR3L SODIMM running at 1600 MHz with CL11 latency, built for the Synology DS1019+ NAS

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • CAS latencyCL11
  • Rated voltage1.35 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Designed for Synology DS1019+ NAS compatibility
  • 4GB DDR3L 1600 CL11 module boosts multitasking
  • Low 1.35V DDR3L voltage reduces power draw
  • JEDEC-standard build ensures warranty-safe upgrade
  • Single 204-pin SODIMM installs in minutes

Synology DS1019+ memory upgrade

This 4GB DDR3L SODIMM is built specifically for the Synology DiskStation DS1019+ NAS. It adds capacity to the system so the unit can keep more files and applications in active memory at once. The module follows the exact specification the platform expects.

Thermals and power draw

Low-voltage DDR3L at 1.35V reduces the energy each module draws compared with standard DDR3. The unbuffered, non-ECC design has no heat spreader, relying on the NAS chassis airflow to stay cool. Operation is silent because there are no moving parts on the module itself.

Build integration

The 204-pin SO-DIMM form factor slots directly into the DS1019+ memory socket without adapters. JEDEC and RoHS compliance means the upgrade keeps the original system warranty intact. Adding this single rank module leaves any second slot free for a matching stick if the platform supports dual-channel operation.

How it compares

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

Price $18.99
Cheaper than about 91% 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 $4.75 per GB
Cheaper than about 80% 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 systemsSynology DiskStation DS1019+

Questions about this item

How do I install this 204-pin DDR3L SODIMM in the Synology DS1019+ and what step is often missed?

Power off the NAS and unplug it. Open the chassis, locate the memory slot, align the notch on the module with the key in the socket, insert at an angle, then press down firmly until the side clips click. The step often missed is verifying both clips lock fully; a loose module causes boot failures.

What maintenance or replacement will this 1.35V non-ECC module need later?

No routine maintenance is required. The module has no heat spreader, so keep the NAS vents clear of dust to maintain airflow. Replacement is only needed if a memory error appears or capacity must be increased beyond the current 4GB.

What limit appears first under sustained load with this CL11 1600MHz memory?

The CAS latency of CL11 at 1600MHz sets the access timing ceiling. Under heavy sustained workloads, the latency bound is reached before bandwidth saturates, so response time plateaus while throughput headroom remains.

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