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Green circuit board SODIMM memory module with black chips and gold contacts

Computer Memory Solutions

Computer Memory Solutions CM5126412800SOSRH 4GB DDR3 1600 SODIMM memory upgrade

SKU CH-04SA-GAK33

4GB DDR3 1600 SODIMM module with CL11 timing and 1.5V operation, validated for Synology DiskStation DS1515+ systems

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • 4GB capacity expands DS1515+ memory for smoother multitasking
  • DDR3 1600 speed matches system spec for stable operation
  • CL11 1.5V timing ensures reliable low-latency performance
  • 204-pin SODIMM form factor fits DS1515+ slots directly
  • Single 4GB module allows flexible upgrade to 6GB max

Synology DS1515+ DDR3 4GB Upgrade

This 4GB DDR3 SODIMM module is built specifically for the Synology DiskStation DS1515+ NAS. It installs into a 204-pin slot and runs at 1600MHz with CL11 timings. The unbuffered, non-ECC design matches the system requirements exactly.

Ideal for DS1515+ capacity increases

The single 4GB stick suits owners expanding a DS1515+ within the platform's 6GB maximum and two-socket limit. Builders needing ECC error correction, registered modules, lower voltage operation, or total memory beyond 6GB cannot use this kit.

DDR3-1600 CL11 1.5V specification

The module operates at DDR3-12800 speed with 11-11-11 latency at 1.5 volts. This exact electrical and timing profile determines whether the NAS will recognise and stabilise the upgrade.

How it compares

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

Price $10.99
Cheaper than about 96% 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 $2.75 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800SOSRH
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsSynology Diskstation Ds1515+
In the box
Included items1 Memory RAM Stick

Questions about this item

What type of memory slot does my Synology DS1515+ need for this 204-pin DDR3 SO-DIMM to fit?

The DS1515+ uses standard 204-pin DDR3 SO-DIMM slots, so this module fits directly without an adapter.

Can I add this 1.5 V unbuffered stick alongside an existing 1.35 V module in the second slot?

The DS1515+ runs memory at 1.5 V; mixing voltages will force both sticks to 1.5 V, so the combination works but the lower-voltage stick loses its power advantage.

How do I confirm the system sees the full 4 GB at 1600 MHz with CL11 timing after installation?

Open DSM Control Panel > Info Center; the Memory section should show 4 GB DDR3 1600 MHz and the timing row will read 11-11-11.

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