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Green rectangular circuit board with black memory chips and gold edge connector

SAMSUNG

SAMSUNG M386AAG40AM3-CWE DDR4-3200 128GB ECC REG LRDIMM server RAM

SKU CH-0GJD-ZPJKN MPN M386AAG40AM3-CWE

128 GB DDR4-3200 ECC registered LRDIMM for high-capacity server memory upgrades

  • Accessory categoryParts
  • Massive 128 GB capacity handles heavy virtualization workloads
  • DDR4-3200 speed delivers high bandwidth for data-intensive tasks
  • ECC registered design corrects errors to protect critical data
  • Load-reduced DIMM topology lowers electrical load for stable scaling

High-capacity DDR4 server memory

The SAMSUNG M386AAG40AM3-CWE is a 128GB DDR4-3200 LRDIMM built for registered ECC environments. Its dual-die package layout and x36 organisation support dense memory configurations in compatible server platforms. The module is supplied new for integration into qualified systems.

Sustained-load behaviour

Registered signalling and on-die ECC maintain data integrity during continuous throughput workloads. Load-reduced topology reduces electrical loading on the memory bus, helping stability at the rated 3200 MT/s transfer rate over extended periods. Cooling and airflow provisions in the host chassis determine thermal headroom.

How it compares

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

Price $920.99
Pricier than about 80% of the 6,523 comparable items (median $188.99).

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

Specifications

Product
Accessory categoryParts
Size & build
Shipping weight0.45 kg
Package size152 × 152 × 152 mm

Questions about this item

How much heat and power does a 128GB DDR4-3200 LRDIMM draw under continuous server load?

This module operates at the standard DDR4-3200 data rate with a 36-bit ECC/REG interface; power draw and thermal output follow the JEDEC DDR4 specification for LRDIMM density.

What motherboard features are required to run a 128GB ECC REG LRDIMM at 3200 MT/s?

The board must provide DDR4 LRDIMM slots, registered ECC support, and a memory controller qualified for 3200 MT/s operation with 128GB per DIMM.

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