Crucial CT16G4DFD8266

Overview

The Crucial CT16G4DFD8266 is a 16 GB DDR4 desktop memory module designed to enhance the performance of PCs with 288-pin UDIMM slots. Running at 2666 MHz (PC4-21300), it provides the bandwidth needed to keep everyday computing tasks and more demanding applications running smoothly. This module offers a noticeable improvement over DDR3 memory, delivering faster data rates and better multitasking capabilities while consuming less power at 1.2 V.

Key features

• 16 GB capacity that expands your system’s ability to handle multiple applications and large files simultaneously
• DDR4 speed of 2666 MHz ensures quicker data transfer and improved responsiveness for both work and play
• Dual-rank design balances capacity and timing for reliable performance in a variety of desktop setups
• Unbuffered and non-ECC format allows for easy installation without the need for special BIOS adjustments
• Low 1.2 V operating voltage reduces power consumption, which helps lower heat output and energy costs
• CL19 latency provides consistent and dependable memory access speeds for everyday computing needs
• Tested for broad motherboard compatibility, giving you confidence that it will work seamlessly with your system

Key specs

• Memory type: DDR4
• Capacity: 16 GB
• Speed: 2666 MHz (PC4-21300)
• Form factor: 288-pin UDIMM
• Voltage: 1.2 V
• Latency: CL19
• Rank: Dual-rank
• Buffered: Unbuffered
• Error correction: Non-ECC

Compatibility and practical use

This memory module fits well in desktop PCs that support DDR4 UDIMM slots, making it a strong choice for office workstations, student computers, and content creation rigs that require more multitasking headroom. Its tested compatibility with a wide range of motherboards means you can upgrade your system without worrying about conflicts or complex setup procedures. The lower power consumption also benefits systems that run for extended periods, helping maintain quieter operation and cooler temperatures.

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, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, 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; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

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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