A-Tech
A-Tech 2GB DDR2 800MHz SODIMM PC2-6400 1.8V CL6 200-Pin Non-ECC Unbuffered Laptop RAM Memory Upgrade Module
Bottom line: The A-Tech 2GB DDR2 800MHz SODIMM PC2-6400 1.8V CL6 200-Pin Non-ECC ($27.70 on Amazon as of 2026-10-06): A-Tech lifetime warranty covers the module, not just 1-3 years; main trade-off: 2GB single module caps older 32-bit laptops fast.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ A-Tech lifetime warranty covers the module, not just 1-3 years
- ✓ Standard 200-pin DDR2 SO-DIMM fits laptops, notebooks and AIOs
- ✓ PC2-6400 800MHz speed, the top DDR2 SO-DIMM grade
- ✓ 1.8V CL6 non-ECC unbuffered matches stock laptop DDR2 timings
Cons
- ✗ 2GB single module caps older 32-bit laptops fast
- ✗ Non-ECC only, so no workstation or server use
- ✗ Sold as 1x2GB, so dual-channel needs a second purchase
- ✗ You must verify your laptop's DDR2 support before ordering
SpecPicks Verdict
SpecPicks scored A-Tech 2GB DDR2 800MHz SODIMM PC2-6400 1.8V CL6 200-Pin Non-ECC… using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. A-Tech's memory & ram lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 2GB ( 1x 2GB Module ) | DDR2 800 MHz ( PC2-6400 / PC2-6400S ) | DDR2 SO-DIMM ( 200-Pin ) | Non-ECC Unbuffered
- High performance Memory RAM upgrade designed for DDR2 SODIMM compatible Laptop, Notebook, & All in One (AIO) computers
- Boosts the performance of your system by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle greater workloads
- All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
- 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 |
|---|---|
| Voltage | 1.8 Volts |
| RAM Size | 2 GB |
| Model Name | A-Tech |
| Form Factor | 200-Pin |
| Memory Speed | 800 MHz |
| Model Number | CT25664AC800 |
| Number of Pins | 200 |
| Mfr Part Number | CT25664AC800 |
| Memory Generation | DDR2 |
| Compatible Devices | Laptop |
| Data Transfer Rate | 800 MHz |
| Memory Form Factor | SODIMM |
| Additional Features | High Performance |
| Computer Memory Size | 2 GB |
| Warranty Description | Limited Lifetime Warranty Covering Defects In Materials And Workmanship |
| RAM Memory Technology | DDR2 |
| Column Address Strobe Latency | 6 |
Ready to buy?
A-Tech 2GB DDR2 800MHz SODIMM PC2-6400 1.8V CL6 200-Pin Non-ECC Unbuffered Laptop RAM Memory Upgrade Module is vintage hardware; the used and vintage market on eBay carries most of the live inventory. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. It also has an Amazon listing — check it for current price and availability. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
See live eBay listings → Check Amazon listing →
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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