Samsung M391B1G73QH0-YK0

Overview

The Samsung M391B1G73QH0-YK0 is an 8 GB DDR3 memory module designed to enhance system stability and efficiency. Operating at 1600 MHz with a low voltage of 1.35 V, it provides reliable performance while minimizing power consumption and heat generation. This ECC unbuffered module is ideal for systems that require error correction to maintain data integrity, such as servers, workstations, and virtualized environments.

Key features

• ECC unbuffered design detects and corrects single-bit memory errors to prevent system crashes and data corruption.
• Low-voltage operation at 1.35 V reduces power draw and heat output, supporting quieter and more energy-efficient setups.
• 2Rx8 memory organization balances bandwidth and capacity, fitting efficiently into a single DIMM slot.
• Lead-free manufacturing process aligns with environmental standards, promoting sustainable hardware choices.
• Compatible with desktop and entry-level server motherboards that support DDR3-1600 ECC unbuffered memory for straightforward installation.

Key specs

• Memory capacity: 8 GB
• Memory type: DDR3
• Speed: 1600 MHz
• Voltage: 1.35 V
• ECC: Yes, error-correcting code unbuffered
• Module configuration: 2Rx8

Compatibility and practical use

This memory module fits well in small business servers, engineering workstations, and home lab environments where system reliability is critical. Its ECC capability helps maintain uptime by correcting memory errors automatically, which is especially valuable for continuous operation scenarios. The low voltage and efficient design make it suitable for compact cases and office settings where heat and noise need to be minimized.

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.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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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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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

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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