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Green rectangular DDR4 DIMM with black chips and gold contacts

A-Tech

A-Tech 16GB DDR4 2133 ECC RDIMM 2Rx4 for Synology RAMRG2133DDR4-16G Server Memory

SKU CH-0FQQ-1QY2H

16 GB DDR4 2133 ECC RDIMM 2Rx4 server memory module with 1.2 V operation

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16GB capacity expands server memory for heavier workloads
  • DDR4 2133MHz speed with CL15 latency supports responsive data access
  • ECC RDIMM registered design detects and corrects memory errors
  • 2Rx4 dual-rank organisation increases memory density per module
  • 2V standard voltage reduces power draw in compatible systems

Synology-Compatible DDR4 ECC RDIMM

This 16 GB registered DDR4 module is built as a direct replacement for the Synology RAMRG2133DDR4-16G part number. It targets administrators upgrading compatible Synology NAS units or workstations that require ECC registered memory. The single-module design simplifies installation when only one slot is available or when populating channels evenly.

16 GB Capacity with CL15 Latency

The module runs at 2133 MHz (PC4-17000) with a CAS latency of 15 and operates at the standard 1.20 V. ECC and registered buffering provide error correction and signal integrity for multi-module server configurations. Capacity heads-up is reached when the platform's maximum supported memory per slot or total system limit is met.

288-Pin DIMM for Registered Platforms

The 288-pin DDR4 DIMM form factor fits only motherboards and NAS appliances designed for registered ECC memory. It cannot be used in consumer boards that accept only unbuffered non-ECC modules. The registered design reduces electrical load on the memory controller, freeing headroom for larger total memory populations.

How it compares

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

Price $53.99
Cheaper than about 83% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $3.37 per GB
Cheaper than about 86% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameA-Tech
Total capacity16 GB
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

Will this 288-pin DDR4 2133 module run at the correct speed alongside my existing CL15 1.20V sticks?

Yes — it is a 16GB DDR4 2133 (PC4-17000) CL15 1.20V registered ECC DIMM, so it matches the voltage, speed and latency of identical-spec modules already installed.

How can I confirm the system sees the full 16GB registered ECC capacity after installation?

Enter the BIOS or Synology DSM info centre; both will report 16GB detected, show ECC active and list the module as a registered DDR4 2133 DIMM.

Does the single 16GB 2Rx4 stick ship alone or with any brackets or cables?

Only the 288-pin DDR4 RDIMM itself is included; no brackets, cables or additional hardware are supplied.

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