A-Tech 2GB RAM Replacement for Crucial CT25664AA800 | DDR2 800MHz PC2-6400 UDIMM Non-ECC 240-Pin DIMM Memory Module
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies A-Tech 2GB RAM Replacement for Crucial CT25664AA800 | DDR2 800MHz PC2… as a mid-pack option worth checking against alternatives in the memory & ram category, based on 6 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. A-Tech's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.0★ customer rating
- ✓ Compatible Memory (RAM) Replacement for Crucial CT25664AA800
- ✓ Backed by A-Tech's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Compatible Memory (RAM) Replacement for Crucial CT25664AA800
- 2GB Module ( 1 x 2GB ) | DDR2 800 MHz PC2-6400 / (PC2-6400U) | DDR2 DIMM ( 240-Pin ) | Non-ECC UDIMM ( Unbuffered DIMM )
- Maximizes the performance of your system by speeding up loading times, boosting responsiveness, and improving the ability to support greater workloads
- All modules undergo quality assurance testing to ensure dependable and reliable performance
- A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
Full Specifications
| Brand | A-Tech |
|---|---|
| RAM Size | 2 GB |
| Form Factor | DIMM |
| Memory Speed | 800 MHz |
| Model Number | CT25664AA800-ATC |
| Number of Pins | 240 |
| Mfr Part Number | CT25664AA800-ATC |
| Memory Generation | DDR2 |
| Compatible Devices | Desktop |
| Data Transfer Rate | 6400 Megabytes Per Second |
| Memory Form Factor | UDIMM |
| Additional Features | Lightweight |
| Computer Memory Size | 2 GB |
| Warranty Description | Lifetime Warranty |
Ready to buy?
A-Tech 2GB RAM Replacement for Crucial CT25664AA800 | DDR2 800MHz PC2-6400 UDIMM Non-ECC 240-Pin DIMM Memory Module is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.