A-Tech

A-Tech 4GB (2x2GB) DDR2 667MHz SODIMM PC2-5300 1.8V CL5 200-Pin Non-ECC Unbuffered Laptop RAM Memory Upgrade Kit

Name: A-Tech 4GB (2x2GB) DDR2 667MHz SODIMM PC2-5300 1.8V CL5 200-Pin Non-ECC Unbuffered Laptop RAM Memory Upgrade Kit
Brand: A-Tech
SKU: B00C538B56

Bottom line: The A-Tech 4GB (2x2GB) DDR2 667MHz SODIMM PC2-5300 1.8V CL5 200-Pin: 4GB kit (2x 2GB) DDR2-667 PC2-5300 for dual-channel SODIMM laptops; main trade-off: DDR2-667 only; no benefit on DDR3/DDR4 notebooks.

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-04

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ 4GB kit (2x 2GB) DDR2-667 PC2-5300 for dual-channel SODIMM laptops
✓ Every module quality-assurance tested before shipping
✓ Backed by A-Tech lifetime warranty + US-based tech support
✓ 200-pin non-ECC unbuffered 1.8V CL5, standard DDR2 laptop spec

Cons

✗ DDR2-667 only; no benefit on DDR3/DDR4 notebooks
✗ 4GB total hits the ceiling of many 32-bit laptop OSes
✗ SODIMM form factor won't fit desktop DIMM slots
✗ Must confirm your laptop supports PC2-5300 before buying

SpecPicks Verdict

SpecPicks scored A-Tech 4GB (2x2GB) DDR2 667MHz SODIMM PC2-5300 1.8V CL5 200-Pin… 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

4GB Kit ( 2x 2GB Modules ) | DDR2 667 MHz ( PC2-5300 / PC2-5300S ) | 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	4 GB
Unit Count	2 Count
Form Factor	200-Pin
Memory Speed	667 MHz
Model Number	CT2KIT25664AC667
Number of Pins	200
Mfr Part Number	CT2KIT25664AC667
Memory Generation	DDR2
Compatible Devices	Laptop
Data Transfer Rate	667 MHz
Memory Form Factor	SODIMM
Additional Features	High Performance
Computer Memory Size	4 GB
Warranty Description	Limited Lifetime Warranty Covering Defects In Materials And Workmanship
RAM Memory Technology	DDR2
Column Address Strobe Latency	5

Ready to buy?

A-Tech 4GB (2x2GB) DDR2 667MHz SODIMM PC2-5300 1.8V CL5 200-Pin Non-ECC Unbuffered Laptop RAM Memory Upgrade Kit 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.

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