We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green Synology DDR4-2666 So-DIMM 4GB laptop memory module

Synology Inc.

Synology Inc. DDR4-2666 Non-ECC So-DIMM 4GB

SKU CH-9C76-B9F82

4 GB DDR4-2666 SO-DIMM memory module for compatible laptops and compact systems

  • Synology-branded DDR4 memory built for reliable laptop upgrades
  • 2666 MHz speed supports responsive multitasking on compatible systems
  • Non-ECC design keeps latency low for everyday workloads
  • So-DIMM form factor fits standard laptop memory slots
  • First listed by the manufacturer on 25 February 2026

Synology DDR4-2666 So-DIMM 4GB

This Synology DDR4-2666 non-ECC So-DIMM delivers 4 GB of laptop memory for compatible systems. It is built for owners of supported Synology devices who need a straightforward capacity increase. The module uses standard DDR4 technology at the rated 2666 MT/s speed. Installation follows the usual So-DIMM slot procedure.

Suits Synology NAS owners adding memory.

This module suits administrators upgrading a compatible Synology NAS or appliance that accepts non-ECC DDR4 So-DIMMs. It will not meet the needs of buyers who require error-correcting code memory for data-integrity workloads. Systems that demand registered or buffered DIMMs cannot use this part. Buyers with desktop motherboards needing full-size DIMMs should look at a different form factor.

2666 MT/s DDR4 speed rating

The decisive specification is the 2666 MT/s DDR4 speed rating paired with non-ECC operation. Verify that your target device supports this exact speed and non-ECC So-DIMM modules before purchase. The 4 GB capacity is fixed and cannot be expanded on the module itself. Matching these two parameters determines whether the upgrade will function correctly.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $198.99
Pricier than about 79% of the 2,079 comparable items (median $70.99).

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 nameSYNOLOGY AMERICA CORP.

Questions about this item

How can I confirm the DDR4-2666 So-DIMM is running at the correct speed after installation?

Enter the system BIOS or use a hardware monitoring utility to verify the memory frequency reads 2666 MT/s and that the module is detected as non-ECC.

What is included with the Synology DDR4-2666 Non-ECC So-DIMM 4GB and what must be purchased separately?

The package contains the single 4 GB So-DIMM module only; any additional modules for dual-channel configuration or tools for laptop disassembly are sold separately.

Which capacity of the Synology DDR4-2666 Non-ECC So-DIMM should I choose for my upgrade?

Select the 4 GB version if your system has a single slot or you need a modest capacity increase; add a second identical module if the platform supports two slots.

More in Laptop RAM

Similar items