Samsung M393AAG40M3B-CYF

Overview

The Samsung M393AAG40M3B-CYF is a 128GB DDR4 registered DIMM designed specifically for server environments that require high-capacity, reliable memory. Operating at 2933 Mbps with a low 1.2 V power supply, it balances fast data transfer speeds with energy efficiency. This module includes 8-bit parity error correction to maintain data integrity and system stability, which is essential for enterprise servers and data centers handling critical workloads.

With a 288-pin layout and a 4R x 4 rank organization, it supports both x4 and x8 DRAM configurations and allows up to two DIMMs per channel. The integrated register buffers clock, command, and control signals to improve signal integrity when multiple modules are installed. Its 3DS 2H DRAM technology enables high-density stacking, providing large memory capacities without compromising performance or reliability.

Key features

• Registered DIMM design that enhances signal integrity for multi-module server configurations
• Error correction with 8-bit parity to prevent data corruption and ensure uptime
• Energy-efficient operation at 1.2 V to reduce power consumption in large server deployments
• Supports both x4 and x8 DRAM configurations for flexible memory setups
• High-density 3DS 2H DRAM stacking technology to maximize memory capacity in limited space
• Compatible with systems allowing two DIMMs per channel, enabling scalable memory expansion

Key specs

• Capacity: 128 GB
• Memory type: DDR4 registered DIMM
• Speed: 2933 Mbps
• Voltage: 1.2 V
• Pin count: 288 pins
• Rank organization: 4R x 4
• DRAM configuration: supports x4 and x8
• Memory stacking: 3DS 2H DRAM technology

Connectivity and compatibility

This memory module is designed for server motherboards that support DDR4 registered DIMMs with a 288-pin layout. It fits well in enterprise-grade servers and data center hardware that require ECC memory for error correction and system reliability. The support for two DIMMs per channel allows for flexible memory configurations in compatible server platforms.

Ideal uses and environments

The Samsung M393AAG40M3B-CYF is well suited to data centers, enterprise servers, and professional IT environments where large memory capacity and data integrity are critical. It supports workloads that demand continuous uptime and accurate data processing, such as virtualization, database management, and cloud computing. This module is a strong choice for IT professionals upgrading existing servers or building new systems that require dependable, high-capacity memory.

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