Samsung M393A8K40B22-CWD

Overview

The Samsung M393A8K40B22-CWD is a 64 GB DDR4 ECC Registered DIMM designed to provide reliable and high-capacity memory for enterprise servers. Operating at 2666 MHz with a low voltage of 1.2 V, it delivers fast data throughput while minimizing power consumption and heat generation. This module is ideal for systems that require stable performance and error correction to maintain uptime and data integrity.

Key features

• Error-correcting code (ECC) actively detects and corrects single-bit memory errors to prevent system crashes and data corruption.
• Registered DIMM design buffers control and command signals, ensuring stable operation in multi-module server configurations.
• High capacity of 64 GB per module helps maximize memory in servers with limited DIMM slots.
• Operates at a power-efficient 1.2 V, reducing overall system power draw and thermal output.
• 4Rx4 memory organization optimizes data handling within the standard 288-pin RDIMM form factor.
• Compatible with a wide range of server platforms supporting DDR4 ECC Registered memory at 2666 MHz.

Key specs

• Memory capacity: 64 GB
• Memory type: DDR4 ECC Registered DIMM
• Speed rating: 2666 MHz (PC4-21300)
• Voltage: 1.2 V
• Module configuration: 4Rx4
• Pin count: 288 pins

Compatibility and usage

This memory module fits into any server motherboard or chassis that supports DDR4 ECC Registered DIMMs running at 2666 MHz. It is well suited for virtualization hosts managing multiple virtual machines, database servers handling large datasets, and high-performance computing environments where memory reliability is essential. The module’s ECC and registered features ensure consistent operation in demanding multi-DIMM setups common in rack-mount and blade servers.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

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After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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