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 rectangular DDR4 memory module with black chips and gold edge connectors

SAMSUNG

SAMSUNG M391A2K43BB1-CTD 16GB DDR4 2666MHz ECC desktop RAM

SKU CH-WEWA-KKHSY

16 GB DDR4 2666 MHz ECC module for desktop and workstation reliability

  • ECC protection prevents data corruption in critical workloads
  • 2666 MHz DDR4 speed supports responsive desktop performance
  • 16 GB single module simplifies capacity upgrades
  • PC4-21300 rating matches workstation memory specifications

16GB DDR4 2666MHz ECC Memory Module

This Samsung M391A2K43BB1-CTD module provides 16GB of DDR4 memory operating at 2666MHz with ECC support. It is designed for compatibility with desktop computers and workstations that require error-correcting code functionality for data integrity. The single-rank stick uses the PC4-21300 standard for reliable system operation.

Suits workstations needing ECC data protection

This memory suits users building or upgrading desktop workstations where ECC error correction is required for stability. It is not for standard consumer desktops lacking ECC support in the motherboard or CPU. Buyers needing non-ECC memory or speeds above 2666MHz should look at alternative modules.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • 2666 MHz DDR4 speed supports responsive desktop performance
  • 16 GB single module simplifies capacity upgrades
  • PC4-21300 rating matches workstation memory specifications

Specifications

No published specifications for this item yet.

Questions about this item

Does my motherboard need a DDR4 slot to use this 2666MHz module?

Yes, the module uses the DDR4 interface and requires a DDR4 DIMM slot on the motherboard.

Can I run this ECC DDR4 stick alongside non-ECC DDR4 memory I already have?

Mixing ECC and non-ECC modules is not recommended; the system will typically disable ECC or fail to boot.

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.