Best Ddr3 Memory Components in 2026

Daisy
Last Updated: Feb 10, 2026

At a Glance: Our Top Picks for Ddr3 Memory Components

A-Tech 4GB (2x2GB) DDR2 800MHz UDIMM PC2-6400 CL6 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Modules
#TOP1
A-Tech 4Gb (2X2Gb) Ddr2 800Mhz Udimm Pc2-6400 Cl6
9.8
PM SCORE
A-Tech 2GB DDR2 667MHz SODIMM PC2-5300 1.8V CL5 200-Pin Non-ECC Unbuffered Laptop RAM Memory Upgrade Module
#TOP2
A-Tech 2Gb Ddr2 667Mhz Sodimm Pc2-5300 1.8V Cl5
9.6
PM SCORE
A-Tech 4GB (2x2GB) DDR2 667MHz SODIMM PC2-5300 1.8V CL5 200-Pin Non-ECC Unbuffered Laptop RAM Memory Upgrade Kit
#TOP3
A-Tech 4Gb (2X2Gb) Ddr2 667Mhz Sodimm Pc2-5300 1.8V
9.6
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Ddr3 Memory Components of 2026

Market Overview
Ddr3 Memory Components Reviewed
  • Reviews Analyzed: 5931 Items
  • PM Avg. Rating: 6.2 / 10
13 Products Evaluated
  • Highest Price: $77.59
  • Lowest Price: $8.72
  • Avg. Price: $29.07

A-Tech 4Gb (2X2Gb) Ddr2 800Mhz Udimm Pc2-6400 Cl6 1.8V Dimm Non-Ecc Unbuffered Desktop Ram Memory Modules

A-TECH COMPONENTS
FBA_CT2KIT25664AA800
6.50 X 3.45 X 0.30 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

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

A-Tech 2Gb Ddr2 667Mhz Sodimm Pc2-5300 1.8V Cl5 200-Pin Non-Ecc Unbuffered Laptop Ram Memory Upgrade Module

A-TECH COMPONENTS
FBA_CT25664AC667
4.00 X 2.15 X 0.30 Inches
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

2GB ( 1x 2GB Module ) | 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

A-Tech 4Gb (2X2Gb) Ddr2 667Mhz Sodimm Pc2-5300 1.8V Cl5 200-Pin Non-Ecc Unbuffered Laptop Ram Memory Upgrade Kit

A-TECH COMPONENTS
CT2KIT25664AC667
4.00 X 3.25 X 0.30 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

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

A-Tech 4Gb (2X2Gb) Ddr2 800Mhz Sodimm Pc2-6400 1.8V Cl6 200-Pin Non-Ecc Unbuffered Laptop Ram Memory Upgrade Kit

A-TECH COMPONENTS
CT2KIT25664AC800
4.00 X 3.25 X 0.30 Inches
0.09 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

Memory Size: 4GB (2x 2GB Modules) | Memory Type: DDR2 SODIMM Memory RAM for Laptop, Notebook, & All-in-One Computers

Speed: DDR2 800MHz PC2-6400 | ECC Type: Non-ECC Unbuffered | Pin Count: 200-Pin | Voltage: 1.8V

Designed for Select (not limited to) Acer, Alienware, Apple, ASRock, ASUS, Dell, DFI, Fujitsu, Gateway, Gigabyte, HP, HP Compaq, Intel, Lenovo, LG, MSI, Panasonic, QNAP, Samsung, Sony, Supermicro, Synology & Toshiba Laptop, Notebook, & All-in-One Computer Models

All A-Tech modules undergo stringent quality assurance testing to ensure high performance and reliability

A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase

A-Tech 2Gb Ddr2 800Mhz Sodimm Pc2-6400 1.8V Cl6 200-Pin Non-Ecc Unbuffered Laptop Ram Memory Upgrade Module

A-TECH COMPONENTS
CT25664AC800
4.00 X 2.15 X 0.30 Inches
0.02 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

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

A-Tech 32Gb (8X4Gb) Server Kit For Dell Poweredge 1900 1950 1950 Iii 1955 2900 2900 Iii 2950 2950 Iii M600 R900 Sc1430 T110 Powervault Nf500 Nf600 Pc2-5300 Ddr2 Ecc Fb Dimm Fully Buffered Memory Ram

A-TECH COMPONENTS
ATC-A2146192-A2257179-A2257184
6.00 X 5.20 X 2.60 Inches
0.99 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

32GB Kit (8x4GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory

Genuine A-Tech Memory

Designed for the Dell PowerEdge 1900 1950 1950 III 1955 2900 2900 III 2950 2950 III M600 R900 SC1430 T110 PowerVault NF500 NF600 NX1950 Workstation 690 (750W Chassis) Precision Workstation 490 Precision Workstation 690 (1KW Chassis) 690n (1KW Chassis) and (750W Chassis) R5400 64bit R5400 N-Series T5400 T7400 Studio Hybrid 140G

Toll Free Technical Support

Lifetime Warranty

A-Tech 16Gb Kit 4X4Gb Server Memory Ram For Dell Poweredge 1900 1950 1950 1955 2900 2950 M600 R900 Sc1430 T110 Powervault Nf500 Nf600 Nx1950 Precision Workstation 690 690N R5400 R5400 T5400 T7400

A-TECH COMPONENTS
A2257179 A2257184 A2257233 KTD-WS667/16G
6.70 X 3.60 X 0.80 Inches
0.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

16GB Kit (4x4GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory

Genuine A-Tech Memory

Designed for the Dell PowerEdge 1900 1950 1950 III 1955 2900 2900 III 2950 2950 III M600 R900 SC1430 T110 PowerVault NF500 NF600 NX1950 Workstation 690 (750W Chassis) Precision Workstation 490 Precision Workstation 690 (1KW Chassis) 690n (1KW Chassis) and (750W Chassis) R5400 64bit R5400 N-Series T5400 T7400 Studio Hybrid 140G

Lifetime Warranty

16Gb Kit (8X2Gb) Fully Buffered Ddr2 Server Ram/Memory. Pc2-5300 667Mhz Ddr2 Dimm Ecc (Fully Buffered) 240 Pin 1.8V

A-TECH COMPONENTS
FULLY BUFFERED SERVER RAM
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

16GB Kit (8x2GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory

Genuine A-Tech Memory

Compatible with many Servers, Motherboards, and Mainboards

Lifetime Warranty

A-Tech 8Gb Ram Replacement For Crucial Ct102472Ab667 | Ddr2 667Mhz Pc2-5300 2Rx4 1.8V Ecc Rdimm Registered 240-Pin Dimm Memory Module

A-TECH COMPONENTS
CT102472AB667-ATC
5.25 X 1.18 X 0.15 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING

Features

Compatible Memory (RAM) Replacement for Crucial CT102472AB667

8GB Module ( 1 x 8GB ) | DDR2 667 MHz PC2-5300 / (PC2-5300 | DDR2 DIMM ( 240-Pin ) | ECC RDIMM ( Registered DIMM ) | 2Rx4 - Dual Rank x4 | 1.8V - DDR2 Standard Voltage

Only Compatible with Select SERVERS and WORKSTATIONS *NOT Compatible with DESKTOP or LAPTOP systems*

Maximizes the performance of your system by speeding up loading times, boosting responsiveness, and improving the ability to support greater workloads

A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase

A-Tech 16Gb (8X2Gb) Server Kit For Dell Poweredge 1900 1950 1950 Iii 1955 2900 2900 Iii 2950 2950 Iii M600 R900 Sc1430 T110 Powervault Nf500 Nf600 Pc2-5300 Ddr2 Ecc Fb Dimm Fully Buffered Memory Ram

A-TECH COMPONENTS
A2146192 A2257179 A2257184 A2257233 KTD-WS667/16G
6.70 X 3.60 X 0.80 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

16GB Kit (8x2GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory

Genuine A-Tech Memory

Designed for the Dell PowerEdge 1900 1950 1950 III 1955 2900 2900 III 2950 2950 III M600 R900 SC1430 T110 PowerVault NF500 NF600 NX1950 Workstation 690 (750W Chassis) Precision Workstation 490 Precision Workstation 690 (1KW Chassis) 690n (1KW Chassis) and (750W Chassis) R5400 64bit R5400 N-Series T5400 T7400 Studio Hybrid 140G

Lifetime Warranty

A-Tech 4Gb Kit 2X 2Gb Memory Ram For Dell Poweredge 1900 1950 1950 1955 2900 2950 M600 R900 Sc1430 T110 Powervault Nf500 Nf600 Nx1950 Precision Workstation 490 690 690N R5400 R5400 Studio Hybrid 140G

A-TECH COMPONENTS
KTD-WS667/4G
6.70 X 3.60 X 0.80 Inches
0.25 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

4GB Kit (2x2GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory

Genuine A-Tech Memory

Designed for the Dell POWEREDGE 1900 / 1950 / 1950 III / 1955 / 2900 / 2900 III / 2950 / 2950 III / M600 / R900 / SC1430 / T110 / POWERVAULT NF500 / NF600 / NX1950 / PRECISION WORKSTATION 490 / PRECISION WORKSTATION 690 (750W Chassis) or (1KW Chassis) / 690n (1KW Chassis) or (750W Chassis) / PRECISION R5400 and R5400-N Series / PRECISION T5400 / PRECISION T7400 / Studio Hybrid 140G

Lifetime Warranty

A-Tech 8Gb Replacement For Kingston Ktd-Ws667/16G - Ddr2 667Mhz Pc2-5300 Ecc Fully Buffered Fbdimm 2Rx4 1.8V - Single Server Memory Ram Stick (Ktd-Ws667/16G-Atc)

A-TECH COMPONENTS
KTD-WS667/16G-ATC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

8GB DDR2 PC2-5300 2rx4 1.8v ECC FULLY BUFFERED SERVER Memory Module (240-pin DIMM 667MHz)

WARNING! This module is ECC FULLY BUFFERED! All modules in your system MUST be the same ECC Type in order to properly function

A-Tech Brand Lifetime Warranty! Toll Free Technical Support

Compatible replacement for Kingston KTD-WS667/16G

A-Tech 1Gb Replacement For Hp 398706-051 - Ddr2 667Mhz Pc2-5300 Ecc Fully Buffered Fbdimm 2Rx8 1.8V - Single Server Memory Ram Stick (398706-051-Atc)

A-TECH COMPONENTS
398706-051-ATC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
A-Tech Components 9.91

Features

1GB DDR2 PC2-5300 2rx8 1.8v ECC FULLY BUFFERED SERVER Memory Module (240-pin DIMM 667MHz)

WARNING! This module is ECC FULLY BUFFERED! All modules in your system MUST be the same ECC Type in order to properly function

A-Tech Brand Lifetime Warranty! Toll Free Technical Support

Compatible replacement for HP 398706-051

Top 10 memory components Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
A-Tech Components 13

Top 10 memory components Brands Pie Chart


We've carried out a comprehensive analysis of 5,931 reviews on memory components, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select memory components priced around $29.07, with top brands including and neuriva and a-tech components

Our team of expert editors reviewed these high-quality items and handpicked the top 13 memory components for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and amazon.com and a-tech components .

We are dedicated to assisting our users in finding the right memory Products based on their needs, saving them considerable time when choosing which memory components to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.