Technical Snapshot

The Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G) is a DDR4 SO-DIMM memory module designed for laptops, mini PCs, and compact systems. Running at 2,666 MT/s with CL19 timings at 1.2V, The module provides 16GB of DDR4 memory . Backed by a 5 Years warranty, this module is ideal for laptop upgrades, Intel NUC builds, and compact form factor PCs.

Use Case: Laptop upgrades, compact PC builds
Compatibility: DDR4 SO-DIMM laptop/mini-PC slot
Category: DDR4 ECC SO-DIMM — Synology Synology DDR4 ECC SO-DIMM

Synology RAM

Synology Synology DDR4 ECC SO-DIMM

Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G)

Name: Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G)
Brand: Synology
SKU: D4ES01-16G
Availability: InStock

DDR4 · ECC SO-DIMM · 2,666 MT/s · 16GB

Speed 2,666 MT/s

Capacity 16GB

Latency CL19

Voltage 1.2V

MPND4ES01-16G

EAN846504004409

CategoryMemory

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Memory Specifications

Memory TypeDDR4

Form FactorECC SO-DIMM

Total Capacity16GB

Speed2,666 MT/s

CAS LatencyCL19

Voltage1.2V

ECCYes

Warranty5 Years

Full Specifications

Data sourced from Synology product specifications

Memory
Product Line	Synology DDR4 ECC SO-DIMM
Memory Type	DDR4
Form Factor	ECC SO-DIMM
Total Capacity	16GB
Module Count	1
Module Capacity	16GB
Speed	2,666 MT/s
Timings & Voltage
CAS Latency	CL19
Voltage	1.2V
ECC	Yes
Product
Brand	Synology
MPN	D4ES01-16G
EAN	846504004409
Warranty	5 Years
Physical
Weight	0.036 kg
Package Dimensions	13 x 9.65 x 1 cm

Support

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Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G) DatasheetPDF · Technical specifications

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Frequently Asked Questions

What motherboards are compatible with this memory?

The Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G) requires a DDR4-compatible motherboard. Compatible platforms include AMD AM4 (B550, X570, B450, etc.) and Intel LGA 1700 (B660, Z690) or LGA 1200 (B560, Z590). DDR4 is NOT compatible with DDR5 slots — they use different pin configurations. This SO-DIMM module fits laptops and compact PCs with DDR4 SO-DIMM slots.

What speed does this memory run at?

The Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G) runs at 2,666 MT/s with CL19 timings. This is a JEDEC standard speed that works automatically without BIOS configuration.

Can I add more memory later?

Yes, the Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G) is a single 16GB module. You can add additional compatible DDR4 ECC SO-DIMM modules to populate empty slots. For best performance, use matched modules of the same speed and capacity to enable dual-channel mode.

Does this memory support ECC error correction?

Yes, the Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G) includes ECC (Error-Correcting Code) support, which detects and corrects single-bit memory errors. This is essential for servers, workstations, and mission-critical applications where data integrity is paramount.

What warranty does this memory come with?

The Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G) comes with a 5 Years warranty from Synology.

JSON-LD Structured Data — Product + Breadcrumb

Product: Synology 16GB DDR4-2666 ECC Unbuffered SO-DIMM (D4ES01-16G)
MPN: D4ES01-16G
Schemas: Product + BreadcrumbList
Properties: 11 additionalProperty entries
Related: 4 isRelatedTo links