---
product_id: 9258521
title: "A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 CL6 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Modules"
brand: "a-tech"
price: "$U5306"
currency: UYU
in_stock: true
reviews_count: 8
category: "A Tech"
url: https://www.desertcart.uy/products/9258521-a-tech-4gb-2x2gb-ddr2-800mhz-udimm-pc2-6400-cl6
store_origin: UY
region: Uruguay
---

# 800MHz blazing speed 4GB dual-channel kit 1.8V low power efficiency A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 CL6 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Modules

**Brand:** a-tech
**Price:** $U5306
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your legacy rig with lightning-fast DDR2 power!

## Quick Answers

- **What is this?** A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 CL6 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Modules by a-tech
- **How much does it cost?** $U5306 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/9258521-a-tech-4gb-2x2gb-ddr2-800mhz-udimm-pc2-6400-cl6)

## Best For

- a-tech enthusiasts

## Why This Product

- Trusted a-tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Easy installation with no tech expertise needed—upgrade your rig in minutes.
- • **Blazing 800MHz DDR2 Speed:** Maximize multitasking and loading times with PC2-6400 performance.
- • **Lifetime Warranty & Dedicated Support:** Confidence backed by A-Tech’s lifetime coverage and friendly expert help.
- • **Dual 2GB Modules for Dual-Channel Power:** Unlock full bandwidth by pairing two identical sticks for seamless speed.
- • **Broad Compatibility & Smart Adaptability:** Works flawlessly with DDR2 800/667 MHz systems, reviving older desktops effortlessly.

## Overview

The A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 RAM kit delivers reliable, high-speed memory upgrade for DDR2-compatible desktops. Featuring dual 2GB modules optimized for dual-channel performance, it runs efficiently at 1.8V and supports JEDEC DDR2 standards. Easy to install and backed by a lifetime warranty, this RAM kit breathes new life into aging systems with broad compatibility and proven stability.

## Description

Buy A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 CL6 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Modules: Memory - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Highly compatible DDR2 RAM Modules, can handle both 800 MHz PC-6400 and 667 MHz PC-5300 excellent value! - This is an excellent product, I got two 4GB kits (4 modules), and all four worked just great, fully compatible with both Intel based computers where they were installed, I feel these memory modules are an excellent value, and revived a pair of 8+ year old computers, one of the computers is an Asrock G31M-GS based system, the other an Elitegroup 945GCT-M/1333 v3.0 with max RAM specs of 4GB (2 GB per slot) DDR2 667 MHz PC-5300, but I took a chance with these RAMs and they adjusted perfectly from 800 MHz down to 667 MHz (not all RAM modules can do this), in other words these modules can handle both 800 MHz PC-6400 and 667 MHz PC-5300. I would definitely like to try A-Tech's other RAM modules like DDR3 in the near future. It must be noted that (at least the ones I got), these RAMs can not handle the 533 MHz PC-4200 standard, this was not a problem for me, but if your motherboard/system is of an older type that can only accept this standard, then these modules won't work for you. Bottom line is that if your system/motherboard can handle 240-pin DIMM (Desktop PC), non ECC, DDR2, PC-6400 (800 MHz) or PC-5300 (667 MHz) RAM, then I would say there is a 99% chance these modules will be compatible with it. Tip, if for example you plan to get 4 GB of RAM,, get a kit (2 modules of 2 GB each), vs getting a single 4 GB stick, when you get a kit (two identical modules) you can benefit from dual channel, that way you can get a full 800 MHz speed vs just 400 MHz from a PC-6400 DDR2 when you use a single or an odd number of RAM sticks.
Review: No problems! Great replacement for faulty memory. - Worked fine. Have been running for several months with no issues.

## Features

- Memory RAM Compatible for select DDR2 capable Desktop, PC Computers + Easy to install at home, no expertise required
- Maximize your system's performance, boost loading speeds, and multitask with ease
- Backed by A-Tech's Lifetime Warranty + Friendly tech support team available to help before and after your purchase
- 4GB RAM Kit ( 2 x 2GB Modules ) | DDR2 DIMM 240-Pin
- Speeds up to 800MHz, PC2-6400
- NON-ECC Unbuffered ( UDIMM ) | 1Rx8 or 2Rx8 - Single or Dual Rank | JEDEC DDR2 standard 1.8V

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C5378J6 |
| Additional Features | Lightweight |
| Best Sellers Rank | #1,210 in Computer Memory |
| Brand | A-Tech |
| Column Address Strobe Latency | 6 |
| Compatible Devices | Desktop |
| Computer Memory Size | 4 GB |
| Customer Reviews | 4.6 out of 5 stars 2,631 Reviews |
| Data Transfer Rate | 6400 Megabytes Per Second |
| Form Factor | 240-Pin |
| Item Height | 0.3 inches |
| Manufacturer | A-Tech Components |
| Memory Speed | 800 MHz |
| Model Name | FBA_CT2KIT25664AA800 |
| Number of Pins | 240 |
| RAM Memory Technology | DDR2 |
| RAM Size | 4 GB |
| Special Feature | Lightweight |
| Voltage | 1.8 Volts |
| Warranty Description | Limited Lifetime Warranty covering defects in materials and workmanship |

## Product Details

- **Brand:** A-Tech
- **Compatible Devices:** Desktop
- **Computer Memory Size:** 4 GB
- **Memory Speed:** 800 MHz
- **RAM Memory Technology:** DDR2

## Images

![A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 CL6 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Modules - Image 1](https://m.media-amazon.com/images/I/81Ue8HGEmxL.jpg)

## Questions & Answers

**Q: what is the cl?**
A: There is no cl in the description of this product.

**Q: Hello will this work on my dell xps 630 motherboard with 4 slots? (it currrently has 4 1gb sticks of pc2-6400u non eec dim 240pin memory in it)**
A: Hi, yes it will work on your Dell but if you're planning to put 2 gigs on each slot it will be a good idea to check out what is the maximum acceptable memory of your pc before you purchase the sticks

**Q: would this work on my eMachines ET1331G-05w?**
A: DDR2 PC2-6400 Unbuffered NON-ECC 1.8V 128Meg x 64, according to e-machines web site I would say they should, the following was taken from their website

**Q: Is your RAM compatible with my existing RAM which is the Corsair XMS2 DDR2 CM2X2048 6400C5C 800MHZ?**
A: The simple answer is , Yes. A-Tech Brand 4GB kit (2GBx2) DDR2 PC2-6400 DESKTOP Memory Modules (240-pin DIMM, 800MHz) is compatibile with your current Corsair XMS2 memory. This A-Tech Brand memory kit is "structurally identitical" with your Corsair memory kit. Meaning both run at 800MHz, are PC2-6400 DDR2 memory for desktops, and are 2-DIMMs each with a capacity of 2GBs, while collectively contain a capacity of 4GBs. So, you can use the A-Tech Brand memory as a replacement or supplement to your current Cosair XMS2 memory. Thanks for asking.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Highly compatible DDR2 RAM Modules, can handle both 800 MHz PC-6400 and 667 MHz PC-5300 excellent value!
*by J***D on January 31, 2016*

This is an excellent product, I got two 4GB kits (4 modules), and all four worked just great, fully compatible with both Intel based computers where they were installed, I feel these memory modules are an excellent value, and revived a pair of 8+ year old computers, one of the computers is an Asrock G31M-GS based system, the other an Elitegroup 945GCT-M/1333 v3.0 with max RAM specs of 4GB (2 GB per slot) DDR2 667 MHz PC-5300, but I took a chance with these RAMs and they adjusted perfectly from 800 MHz down to 667 MHz (not all RAM modules can do this), in other words these modules can handle both 800 MHz PC-6400 and 667 MHz PC-5300. I would definitely like to try A-Tech's other RAM modules like DDR3 in the near future. It must be noted that (at least the ones I got), these RAMs can not handle the 533 MHz PC-4200 standard, this was not a problem for me, but if your motherboard/system is of an older type that can only accept this standard, then these modules won't work for you. Bottom line is that if your system/motherboard can handle 240-pin DIMM (Desktop PC), non ECC, DDR2, PC-6400 (800 MHz) or PC-5300 (667 MHz) RAM, then I would say there is a 99% chance these modules will be compatible with it. Tip, if for example you plan to get 4 GB of RAM,, get a kit (2 modules of 2 GB each), vs getting a single 4 GB stick, when you get a kit (two identical modules) you can benefit from dual channel, that way you can get a full 800 MHz speed vs just 400 MHz from a PC-6400 DDR2 when you use a single or an odd number of RAM sticks.

### ⭐⭐⭐⭐⭐ No problems! Great replacement for faulty memory.
*by C***Y on October 20, 2025*

Worked fine. Have been running for several months with no issues.

### ⭐⭐⭐⭐⭐ It worked so I'm happy
*by J***J on September 7, 2025*

Not problems with this RAM. It installed easily like it should. Works properly.

## Frequently Bought Together

- A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 CL6 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Modules
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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-26*