Crucial CT2KIT25664AA800

Overview

The Crucial CT2KIT25664AA800 is a 4GB desktop memory upgrade kit consisting of two 2GB DDR2 modules designed to enhance your computer’s performance. Operating at 800MHz with CL6 latency, it improves multitasking and speeds up application loading on compatible desktop systems. This kit fits into most desktops with a 240-pin DDR2 slot and supports dual-channel configurations to maximize data transfer efficiency.

These unbuffered, non-ECC modules provide a reliable and straightforward way to boost system responsiveness, making everyday computing smoother for general users, students, and professionals alike. The memory undergoes rigorous testing to ensure stability and dependability after installation.

Key features

• Two 2GB DDR2 modules combine for a total of 4GB capacity, enhancing overall system memory.
• 800MHz clock speed with CL6 latency delivers efficient and consistent data transfer rates.
• Unbuffered UDIMM and non-ECC design tailored for standard desktop environments.
• 240-pin configuration ensures compatibility with a wide range of DDR2-supporting desktops.
• Supports dual-channel mode to increase memory bandwidth and improve multitasking performance.
• Simple installation process allows users to upgrade their system without technical complications.
• Tested for stability and reliability to maintain system integrity during daily use.

Key specs

• Memory type: DDR2 SDRAM
• Capacity: 4GB (2 x 2GB modules)
• Speed: 800MHz (PC2-6400)
• Latency: CL6
• Form factor: 240-pin DIMM
• Module type: Unbuffered, non-ECC

Installation and setup

Installing this memory kit is straightforward and requires no special tools. Simply power down your desktop, open the case, and insert the modules into the appropriate DDR2 slots, ideally in matched pairs to enable dual-channel mode. Following the manufacturer’s installation guidelines helps ensure the upgrade is recognized correctly and your system runs smoothly after the upgrade.

Ideal uses and environments

This memory upgrade is well suited for users looking to extend the life of older desktop systems or improve performance for everyday tasks such as web browsing, office applications, and light multitasking. It fits well in home offices, student setups, and professional environments where a cost-effective memory boost is needed without switching to newer platforms.

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.

Learn more

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.

Learn more

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.

Learn more