Samsung 64GB DDR4 2666 Mbps Server Memory Module

Overview

The Samsung M386A8K40CM2-CTD is a 64GB DDR4 server memory module designed to enhance system capacity while maintaining low power consumption. Operating at 2666 Mbps with a 1.2 V power draw, it delivers increased bandwidth and efficiency, making it well suited for high-density server environments and energy-conscious data centers. Its load reduced DIMM (LRDIMM) architecture helps maintain signal integrity and stability even when multiple modules are installed per channel.

Key features

• Load reduced DIMM design that offloads clock, command, and control signals to a dedicated register, reducing electrical load on the memory controller
• Separate data buffer for handling data lines, enabling support for up to three modules per channel without compromising stability
• High-density 64GB capacity with a 4R x 4 rank layout built from (DDP4G x 4) x 36 components, ideal for intensive workloads
• Operates at a low voltage of 1.2 V to minimize heat generation and power consumption in server racks
• Compatible with any server motherboard supporting DDR4 LRDIMM modules at 2666 Mbps speed and 288-pin form factor
• Supports demanding applications such as virtualization, in-memory databases, and real-time analytics by providing ample memory headroom and bandwidth

Key specs

• Capacity: 64 GB
• Memory type: DDR4 load reduced DIMM (LRDIMM)
• Speed: 2666 Mbps
• Voltage: 1.2 V
• Rank organization: 4R x 4
• Component layout: (DDP4G x 4) x 36
• Pin count: 288 pins

Connectivity and compatibility

This memory module fits into standard DDR4 server slots with a 288-pin form factor. It supports systems that allow up to three LRDIMMs per channel, which helps maximize memory capacity without sacrificing signal quality. Its compatibility with a wide range of server motherboards makes it a flexible choice for upgrading existing infrastructure or building new high-performance servers.

Performance and reliability

The load reduced DIMM architecture enhances signal integrity by managing command and control signals separately from data lines. This design reduces electrical load on the memory controller, allowing for higher memory densities and improved stability under heavy workloads. The module’s low operating voltage also contributes to reduced heat output, which is critical for maintaining reliability in densely packed server environments.

Ideal uses and environments

This 64GB DDR4 module is well suited for data centers and enterprise servers that require large memory capacities and efficient power usage. It supports virtualization hosts, in-memory databases, and real-time analytics applications that demand fast and reliable memory access. Its design helps maintain system responsiveness and throughput in environments where multiple memory modules are installed per channel.