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Green rectangular DDR4 LRDIMM module with black memory chips and gold edge connectors

SAMSUNG

SAMSUNG M386A4G40DM0-CPB 32 GB DDR4 LRDIMM 2133 MHz 1.2 V 288-pin server RAM

SKU CH-GGHC-75CZW

32 GB DDR4 LRDIMM server memory running at 2133 MHz with 1.2 V operation and 288 pins

  • 32 GB capacity handles large server workloads
  • LRDIMM architecture supports high-density memory configurations
  • 2133 MHz speed delivers responsive data throughput
  • 2 V operation reduces power consumption per module
  • 288-pin DDR4 form factor fits standard server slots

Capacity and form factor

This Samsung module delivers 32 GB of DDR4 server memory in a load-reduced DIMM package. The 4R x 4 rank organisation allows higher density per slot than standard registered DIMMs. It fits 288-pin DDR4 memory sockets and operates at 1.2 V. The part is suited for enterprise platforms that need maximum capacity per channel.

Upgrade path from registered DIMMs

Systems already using 2133 MT/s DDR4 RDIMMs can replace them with these LRDIMMs to increase per-slot capacity without changing memory speed. The jump is worthwhile when the motherboard and CPU memory controller support load-reduced modules and the workload benefits from larger memory footprints. Compatibility must be verified against the platform qualified-vendor list.

Sustained-load behaviour

Load-reduced architecture buffers the address and command signals, reducing electrical load on the memory controller during continuous operation. At the rated 2133 MT/s the module maintains stable throughput for long-running virtualisation, database or high-performance-computing tasks. The 1.2 V operating voltage keeps power draw consistent under sustained bandwidth demand.

Highlights

  • 32 GB capacity handles large server workloads
  • LRDIMM architecture supports high-density memory configurations
  • 2133 MHz speed delivers responsive data throughput
  • 2 V operation reduces power consumption per module
  • 288-pin DDR4 form factor fits standard server slots

Specifications

No published specifications for this item yet.

Questions about this item

Does this 288-pin LRDIMM fit a standard DDR4 server slot?

Yes — the module uses the standard 288-pin DDR4 LRDIMM form factor and 1.2 V operation, so it installs in any server DIMM socket wired for DDR4 LRDIMMs.

What is the correct way to seat this 4R x 4 module, and what step do installers often skip?

Align the notch with the key, press straight down until both ejector clips click, then verify the clips are fully latched; the step often skipped is confirming both clips engage after pressure is released.

When should this 32 GB DDR4 LRDIMM be replaced in a production server?

Replace it if memory diagnostics report uncorrectable ECC errors, if the system logs repeated corrected-error thresholds, or during a planned capacity upgrade beyond 32 GB per slot.

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