Samsung M391A2K43DB1-CWE

Overview

The Samsung M391A2K43DB1-CWE is a 16GB DDR4 memory module designed to enhance system performance with a data rate of 3200 Mbps at a low operating voltage of 1.2 V. It fits standard DDR4 DIMM slots on desktops, servers, and upgrade-ready laptops, providing the bandwidth needed for fast application response and smooth multitasking. Its error correction capabilities ensure data integrity, making it suitable for demanding workloads and continuous operation.

Key features

• High-speed 3200 Mbps data rate that supports quick data transfer and improved system responsiveness
• Low 1.2 V power consumption to reduce heat output and support energy-efficient system designs
• 2R x 8 rank configuration that offers a balanced combination of capacity, speed, and stability
• Single error correction and detection (ECC) to identify and repair common data errors automatically, enhancing reliability
• Compatible with standard 288-pin DDR4 DIMM slots for easy installation and broad hardware support
• Ideal for content creation, data analysis, virtualization, and other memory-intensive tasks requiring stable throughput

Key specs

• Capacity: 16 GB
• Memory type: DDR4
• Data rate: 3200 Mbps
• Voltage: 1.2 V
• Rank: 2R x 8
• Form factor: 288-pin DIMM
• Error correction: Single error correction and detection (ECC)

Installation and setup

Installing this memory module is straightforward and user-friendly. Simply power down your system, align the module’s notches with the DDR4 DIMM slot, and press firmly until the latches click into place. This process ensures a secure connection without the need for additional tools or configuration, allowing you to quickly upgrade your system’s memory capacity and performance.

Performance and reliability

The module’s ECC feature plays a crucial role in maintaining data integrity during intensive operations, such as running large databases or multiple virtual machines. Its low voltage operation helps keep thermal output manageable, which is especially important in tightly packed server environments. Together, these features contribute to a stable and efficient system that can handle demanding workloads without interruption.

Ideal uses and environments

This memory module is well suited to professionals and enthusiasts who require dependable performance for multitasking, content creation, and virtualization. It fits well in desktop workstations, servers, and laptops that support DDR4 memory upgrades. Users looking to extend the life of their existing hardware or build energy-conscious systems will find this module a strong choice for balancing speed, capacity, and power efficiency.

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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.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

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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If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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