Samsung M391A2K43BB1-CRC 16GB DDR4-2400 ECC UDIMM 2Rx8 Server Memory Module

The Samsung M391A2K43BB1-CRC is a 16GB DDR4-2400 ECC unbuffered memory module for compatible servers and workstations that use 288-pin ECC UDIMMs.

Recommended For

• Home-server and homelab builders with a motherboard and CPU that support ECC DDR4 UDIMMs, who want a 16GB module for services such as storage, virtualization, or home automation.
• Owners of a compatible server or workstation board who need a replacement or matching 16GB ECC UDIMM; check the board’s memory list and CPU support before buying.
• Builders of compact servers or workstations designed for unbuffered ECC memory, who prefer this module type over registered DIMMs and have confirmed the platform supports it.

Real-World Use Scenarios

• For a compatible NAS or home file server holding backups and shared files, this module adds 16GB of ECC memory; when the system supports and enables ECC, it can correct certain memory errors during operation, but it does not replace backups or protect data on storage drives.
• For a small home-lab server running a few virtual machines or containers, this stick can add memory for the host and its services; the practical benefit depends on the total installed RAM and the workloads, and the platform must support ECC UDIMMs.
• In an ECC-capable workstation running long data-processing or engineering jobs, the module provides additional memory with error-correction capability; users should confirm that both the CPU and motherboard support ECC operation.
• When replacing or adding memory in an older DDR4 server or workstation, this exact module may suit systems specified for 16GB DDR4-2400 ECC unbuffered DIMMs; check the system’s memory list and requirements first, since ECC UDIMM is not interchangeable with registered ECC memory.

Spec Summary