Samsung M386A4G40DM0-CPB 32GB 4DRX4 PC4-2133P For Server

The Samsung M386A4G40DM0-CPB is a 32GB DDR4-2133 LRDIMM server memory module, suited to server owners and IT administrators upgrading systems that require 288-pin, 4Rx4 LRDIMMs.

Recommended For

• Operators expanding a compatible DDR4 server for virtualization, large databases, or other memory-heavy workloads where adding capacity is more important than using newer memory technology.
• IT teams maintaining older servers that specifically support 32GB DDR4-2133 LRDIMMs and need a module matching that memory configuration.
• Homelab builders with a server platform confirmed to support LRDIMMs who are increasing RAM for multiple virtual machines or self-hosted services.
• Server administrators replacing a failed or missing module in a system already configured for this Samsung LRDIMM or a verified equivalent.

Real-World Use Scenarios

• On a compatible virtualization host, adding this module increases installed memory by 32 GB, giving the administrator more room to assign RAM to virtual machines before the host has to rely on slower storage.
• For a supported server running a memory-heavy database, adding this DIMM can expand the working set the server can keep in RAM; the actual benefit depends on the workload and the server’s memory configuration.
• A homelab operator running several virtual machines or server services can use the 32 GB module to add memory headroom, provided the motherboard and processor support this LRDIMM type.
• When replacing a failed DIMM in a compatible server, using this exact part can restore memory capacity; check the server’s qualified memory list and population rules before installation.
• For a server reaching its supported memory limit with conventional DIMMs, LRDIMMs may allow a higher-capacity configuration; this 32 GB module helps only if it fits the platform’s supported DIMM type, rank, and slot rules.