Samsung M391A2K43BB1-CTD

Overview

The Samsung M391A2K43BB1-CTD is a 16GB DDR4 memory module designed to enhance the performance and reliability of desktops and workstations. Operating at 2666 MHz, it provides the bandwidth necessary for demanding tasks like 3D rendering, data analysis, and extensive multitasking. Its ECC capability ensures data integrity by detecting and correcting single-bit errors, making it suitable for professional environments where accuracy is critical.

Key features

• High transfer rate of 2666 MHz (PC4-21300) supports smooth and efficient data processing for intensive applications.
• ECC support actively detects and corrects single-bit errors, reducing the risk of data corruption in sensitive workloads.
• Standard 288-pin UDIMM form factor allows for easy installation in compatible motherboards without compatibility concerns.
• Low operating voltage of 1.2 V helps minimize power consumption and heat generation, supporting stable operation during extended use.
• 2R x 8 memory configuration balances performance and capacity, making it a reliable choice for high-end desktops and workstations.

Key specs

• Memory capacity: 16 GB
• Memory type: DDR4
• Speed: 2666 MHz (PC4-21300)
• Memory layout: 2R x 8
• ECC support: Yes
• Form factor: 288-pin UDIMM
• Operating voltage: 1.2 V

Compatibility and usage

This memory module fits motherboards that support DDR4 PC4-21300 UDIMM slots, making it a straightforward upgrade for many desktop and workstation systems. It is well suited for users who require stable and large-capacity memory for professional tasks such as engineering simulations, content creation, and server applications. Adding this module can improve system responsiveness and reduce errors in data-intensive environments.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

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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.

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