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Green rectangular SODIMM module with gold edge connector and black chips

OWC

OWC 8GB DDR4 2666 CL19 2Rx8 260-pin 1.2V Non-ECC SODIMM for Synology DS1520+ memory upgrade

SKU CH-GJNM-9A0FD

Adds 8GB DDR4 2666 CL19 SODIMM to Synology DS1520+ for faster multitasking

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 8GB capacity expands NAS multitasking headroom
  • DDR4 2666 speed matches DS1520+ spec
  • CL19 latency and 1.2V voltage keep power draw low
  • 260-pin SODIMM form factor fits the DS1520+ slot
  • JEDEC and RoHS compliance ensures warranty-safe upgrade

8 GB DDR4 SODIMM for Synology DS1520+

This OWC module delivers 8 GB of DDR4 memory built to the PC4-21300 standard at 2666 MHz with CL19 latency. It uses a 260-pin SODIMM form factor and operates at 1.2 V without ECC or buffering. The stick is validated specifically for the Synology DiskStation DS1520+ NAS.

Suitable for DS1520+ memory expansion

The module fits DS1520+ owners who want to increase installed memory for heavier multitasking or more simultaneous services. It is not for systems that require ECC memory, registered DIMMs, or a different pin count such as 288-pin desktop memory.

CL19 latency at 2666 MHz

The CAS latency of CL19 at the rated 2666 MHz speed determines timing compatibility with the DS1520+ memory controller. Matching this specification ensures the NAS recognises the module and runs it at the correct frequency.

How it compares

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

Price $44.99
Cheaper than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.62 per GB
Cheaper than about 69% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2S6D42R808 GB
Total capacity8 GB
Product type260-Pin DDR4 Non-ECC SODIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSynology DiskStation DS1520+

Other versions of this model

5 more in the same range

Questions about this item

Is the 8 GB module the only capacity offered for this Synology DS1520+ upgrade?

Yes, this specific part number is a single 8 GB SODIMM; the DS1520+ has two slots, so you can add one or two of these modules depending on your target total.

What does the 2666 MHz rating actually deliver inside a DS1520+?

The module runs at 2666 MHz CL19 at 1.2 V; the DS1520+ memory controller will operate it at that speed, giving the full DDR4 2666 bandwidth for the NAS workload.

Does the 260-pin DDR4 SODIMM interface limit anything in practice?

The 260-pin DDR4 SODIMM form factor is the standard laptop/NAS slot; it fits the DS1520+ sockets directly and is backward compatible with 2400 MHz and 2133 MHz systems if moved elsewhere.

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