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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+

  • Product typeAccessory
  • Key featuresRAM DDR4 ECC Unbuffered SODIMM 16 GB Applied Models: 22 seri

Model D4ES01-16G

  • 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.

How it compares

Measured against everything we stock in Multi-Bay Desktop NAS, at today’s prices. Recalculated every night.

Price $258.99
Cheaper than about 76% of the 230 comparable items (median $562.49).

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Specifications

Product
Brand nameSynology
Model nameD4ES01-16G
Product typeAccessory
Size & build
Shipping weight0.05 kg
Package size127 × 89 × 15 mm

Other versions of this model

5 more in the same range

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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