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Two green SO-DIMM sticks, black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM5126412800SOSRL 8GB (2x4GB) DDR3L 1600 CL11 memory upgrade

SKU CH-05N2-3VVG7

8GB dual-channel kit of 204-pin DDR3L 1600 CL11 SO-DIMMs validated for Synology RackStation RS1219+

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • Guaranteed Synology RS1219+ fit from CMS testing
  • 8 GB dual-channel kit boosts multitask headroom
  • Low-voltage 1.35 V DDR3L cuts power draw
  • CL11 1600 MHz speed matches system spec
  • Unbuffered non-ECC SO-DIMM installs without config

Synology RS1219+ memory kit

This 8 GB kit contains two 4 GB DDR3L SO-DIMMs built for the Synology RackStation RS1219+. The modules run at 1600 MHz with CL11 timing and 1.35 V operation. They are unbuffered, non-ECC and use a 204-pin layout. Computer Memory Solutions validates compatibility for this specific NAS model.

Steady throughput for NAS workloads

The memory maintains its rated 1600 MHz speed and CL11 latency during continuous file serving, backup and virtualization tasks. Low-voltage DDR3L operation keeps power draw modest inside the rack chassis. Unbuffered design avoids extra latency layers that can appear under sustained multi-user access. The two-stick population leaves the second slot free for a future 16 GB maximum.

1600 MHz DDR3L speed grade

The single specification that decides fit is the DDR3L 1600 (PC3L 12800) rating matched to the RS1219+ memory controller. A different speed grade or standard DDR3 voltage will not train correctly in this system. Buyers who need ECC protection or registered modules cannot use this kit.

How it compares

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

Price $76.99
Cheaper than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $9.62 per GB
Typical for this category: the median of 20,941 items is $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 nameComputer Memory Solutions
Model nameCM5126412800SOSRL
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsSynology RackStation RS1219+
In the box
Included items2 Memory RAM Sticks

Questions about this item

How much power does the 1.35V DDR3L kit draw when the Synology RS1219+ runs continuously?

Operating at 1.35V instead of standard 1.5V DDR3 reduces energy use and heat output inside the RS1219+ chassis during all-day workloads.

Does the RS1219+ need any firmware update or extra hardware to accept these 204-pin SO-DIMMs?

The modules are built to the exact DDR3L 1600 CL11 specification the RS1219+ requires; no additional parts or BIOS changes are needed.

Will these unbuffered non-ECC sticks work alongside any original memory already installed in the RS1219+?

Yes — they match the system's DDR3L 1600 unbuffered non-ECC profile, so they can fill the second slot for a 16 GB total without timing conflicts.

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