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Green circuit board with black memory chips and gold edge connector

Synology Inc.

Synology Inc. D4ES01-16G 16GB DDR4 ECC SODIMM NAS

SKU CH-6FCJ-AA992 MPN D4ES01-16G

16GB DDR4 ECC SODIMM memory module for Synology 22-series NAS arrays including DS3622xs+ and DS2422+

  • TypeAccessory
  • FeaturesRAM DDR4 ECC Unbuffered SODIMM 16GB Applied Models: 22 serie

Option D4ES01-16G

Struck-through versions exist but are not stocked here.

  • 16GB DDR4 ECC memory protects data integrity
  • Unbuffered SODIMM installs directly into compatible NAS slots
  • 260-pin form factor matches 22-series expansion sockets
  • Validated for DS3622xs+ and DS2422+ systems
  • Single 16GB module simplifies capacity upgrades

What this memory module does

The Synology D4ES01-16G is a 16GB DDR4 ECC unbuffered SODIMM designed to upgrade compatible Synology NAS arrays. It adds capacity for virtualization, caching and multi-user workloads on supported 22-series models.

Compatibility check

This module works only with the DS3622xs+ and DS2422+ from the 22 series; other units will not accept it. Verify your exact model before ordering because the 260-pin SO-DIMM keying and firmware validation prevent installation elsewhere.

ECC benefit

Error-correcting code detects and corrects single-bit errors automatically, reducing silent data corruption during long uptime. The unbuffered design keeps latency low for the memory controller in these specific NAS platforms.

Highlights

  • 16GB DDR4 ECC memory protects data integrity
  • Unbuffered SODIMM installs directly into compatible NAS slots
  • 260-pin form factor matches 22-series expansion sockets
  • Validated for DS3622xs+ and DS2422+ systems
  • Single 16GB module simplifies capacity upgrades

Specifications

BrandSynology
ModelD4ES01-16G
TypeAccessory
FeaturesRAM DDR4 ECC Unbuffered SODIMM 16GB
Applied Models:
22 series: DS3622xs+, DS2422+
Shipping weight0.05 kg
Package size127 × 89 × 15 mm

Other versions of this model

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Questions about this item

How much usable memory does the 16GB module add to a DS3622xs+?

The module provides 16GB of DDR4 ECC capacity in a single stick, expanding the NAS memory by that full amount when installed.

What DDR4 form factor and pin count does the D4ES01-16G use?

It is a 260-pin unbuffered ECC SO-DIMM, the standard DDR4 SODIMM interface for compatible Synology NAS units.

Will this 16GB stick fit inside a DS2422+ chassis?

Yes, the module is designed for the 22-series lineup, which includes the DS2422+ and DS3622xs+.

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