Best DDR2 SDRAM Computer Memory of 2026

Tom Law Avatar
Tom Law
Last Updated: 4 Feb 2026

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DDR2 SDRAM computer memory is a type of random access memory (RAM) commonly used in desktop and laptop computers. It offers faster data transfer rates and higher bandwidth than its predecessor, DDR SDRAM. DDR2 SDRAM is available in various capacities ranging from 512 MB to 8 GB per module, and operates at different speeds, typically ranging from 400 MHz to 1066 MHz. It is a reliable and cost-effective solution for upgrading or expanding the memory capacity of your computer, which can improve its overall performance and multitasking capabilities.

At a Glance: Our Top Picks

Kingston KVR667D2N5/1G 1 GB PC2-5300 667 MHz DDR2-SDRAM Memory 240-Pin Cover #TOP 1
Kingston KVR667D2N5/1G 1 GB PC2-5300 667 MHz DDR2-SDRAM Memory 240-Pin
ftb score rating icon 9.9
Lenovo 2048MB PC2-5300 DDR2 Memory Module Cover #TOP 2
Lenovo 2048MB PC2-5300 DDR2 Memory Module
ftb score rating icon 9.8
Kingston 1 GB DDR2 Memory Module for Dell Cover #TOP 3
Kingston 1 GB DDR2 Memory Module for Dell
ftb score rating icon 9.6

Top 9 DDR2 SDRAM Computer Memory

#TOP 1

Kingston KVR667D2N5/1G 1 GB PC2-5300 667 MHz DDR2-SDRAM Memory 240-Pin

KVR667D2N5/1G
Kingston KVR667D2N5/1G 1 GB PC2-5300 667 MHz DDR2-SDRAM Memory 240-Pin Cover
Kingston KVR667D2N5/1G 1 GB PC2-5300 667 MHz DDR2-SDRAM Memory 240-Pin, DIMM CL5

Features
DDR II SDRAM
Kingston ValueRAM 1GB (1 Module X 1GB) Internal Desktop Memory
Limited Lifetime Warranty
DIMM 240-Pin
667 MHz ( PC2-5300 )
#TOP 2

Lenovo 2048MB PC2-5300 DDR2 Memory Module

40Y7735
Lenovo 2048MB PC2-5300 DDR2 Memory Module Cover
Lenovo 2048MB PC2-5300 DDR2 SDRAM Memory (German import)

The Lenovo DDR2 Memory is a reliable choice for enhancing your laptop’s performance. With a capacity of 2048MB, it allows for better multitasking, enabling you to run multiple applications smoothly. The PC2-5300 specification ensures compatibility with a wide range of laptops, making installation straightforward. Additionally, the German import aspect signifies quality manufacturing standards, providing you with peace of mind regarding durability and performance. By upgrading your laptop with this memory, you can significantly improve your device's overall efficiency.

What We Like
Enhances laptop performance
Compatible with many laptops
Easy installation process
High-quality German import
#TOP 3

Kingston 1 GB DDR2 Memory Module for Dell

KTD-DM8400B/1G
Kingston 1 GB DDR2 Memory Module for Dell Cover
Kingston KTD-DM8400B/1G 1 GB DIMM Memory 2, 667 MHz (PC2 5300) 240-Pin DDR2 SDRAM Single (Not a Kit) KTD-DM8400B/1G

The Kingston 1 GB DDR2 Memory is designed specifically for Dell systems, ensuring compatibility and optimal performance. This memory module operates at 667 MHz, providing a reliable speed for everyday tasks. It replaces various Dell part numbers, making it a versatile choice for upgrades. With its 240-pin DIMM type, installation is straightforward, allowing you to boost your computer's memory with ease. This product is perfect for enhancing your system’s performance and efficiency.

What We Like
Compatible with Dell systems
Reliable speed of 667 MHz
Easy installation process
Versatile replacement options
Quality from industry leader
#TOP 4

Rasalas DDR2 PC2-6400 800 Sodimm 4GB Kit PC2 6400S 2RX8 1.8V CL6 RAM Memory Modules

2GB-6400S-Greenx2
DDR2 SODIMM
Rasalas DDR2 PC2-6400 800 Sodimm 4GB Kit PC2 6400S 2RX8 1.8V CL6 RAM Memory Modules Cover
Rasalas DDR2 PC2-6400 800 Sodimm 4GB Kit (2x2GB) PC2 6400S 2RX8 1.8V CL6 RAM Memory Modules for Laptop Computer

Features
Quality Components: Rasalas Memory Use High Quality Granules (Hynix, Kingston, Samsung, Micron, Elpida, Nanya), Under Rigorous Testing And Screening, With Strong Compatibility And High Stability With Motherboards Of Various Brands. It Can Provide Your Computer With Superior Memory Quality And The Stability Required For Long-Term System Operation.
Superior Compatibility: PC2-6400 PC2-6300 DDR2-800MHz 200 Pin 1.8V CL6 RAM Memory Modules, Designed For Mac, AMD, Intel Systems.
What You Get:2x 2GB DDR2-800MHz PC2-6400S Ram Memory, Used In AMD, Intel, Mac Systems. 24 Hours Warm Service, Lifetime Maintenance.
Plug And Play: Memory Upgrade Is One Of The Fastest, Easiest, And Most Affordable Ways To Immediately Improve The Performance Of Your Computer. If Your PC Laptop, Desktop, Or Mac System Is Running Slowly, Installing More Memory Takes As Little As Five Minutes And Delivers Immediate And Lasting Improvements.
About Purchase: Please Refer To The Computer Specifics And Item Parameters To Purchase, If You Do Not Know How To Choose, Please Feel Free To Send Your Computer Model And Your Demand To ([email protected]).
#TOP 5

Kingston Technology ValueRAM 1 GB, DDR2 SDRAM

KVR667D2/1GR
Kingston Technology ValueRAM 1 GB, DDR2 SDRAM Cover
Kingston Technology ValueRAM 1 GB, DDR2 SDRAM, 667 MHz 1 GB DDR2 667 MHz Memory Module

Features
240-Pin Unbuffered DIMM
24/7 Tech Support
SDRAM-DDR2, 1.8V, CL5
International Products Have Separate Terms, Are Sold From Abroad And May Differ From Local Products, Including Fit, Age Ratings, And Language Of Product, Labeling Or Instructions.
128Mx64 Non-Ecc 667MHz
#TOP 6

ROYEMAI 8GB DDR2-800, PC2-6400 8GB Kit DDR2 RAM PC2-6300 2Rx8 240 pin CL6 1.8V Desktop Computer RAM Memory

4-2GB-6400U-Large
8GB(2GBx4) 6400U
DDR2 800
ROYEMAI 8GB DDR2-800, PC2-6400 8GB Kit DDR2 RAM PC2-6300 2Rx8 240 pin CL6 1.8V Desktop Computer RAM Memory Cover
ROYEMAI 8GB DDR2-800, PC2-6400 8GB Kit (4x2GB) DDR2 RAM PC2-6300 2Rx8 240 pin CL6 1.8V Desktop Computer RAM Memory

Features
Reliability: DDR2 PC2-6400, Hand-Checked And Tested For Quality At Each Step In The Manufacturing Process, A High Level Of Reliability.
Advanced Quality: DDR2 8GB, DDR2 800, All DDR2 RAM Are From Samsung, Hynix, Micron, Elpida, Kingston, Nanya, Qimonda...
Superior Performance: PC2-6400, Empowers Your Computer To Achieve Faster Loading Times, System Responsiveness.
High Faster: Handling Data-Intensive Programs And Multitask Easily And Quickly. Which Will Also Reduce Power Consumption.
Guaranteed: Lifetime Warranty, Free Technical Support. For Any Problem, Please Feel Free To Reach Us At [email protected], We Are Here For You 24 Hours.
#TOP 7

Kingston 2 GB DDR2-SDRAM PC2-6400 Memory

KTL2975C6/2G
Kingston 2 GB DDR2-SDRAM PC2-6400 Memory Cover
Kingston KTL2975C6/2G PC2-6400 Memory 2 GB (800 MHz CL6) DDR2-SDRAM

The Kingston 2 GB Memory is designed to enhance your computer's performance. With a speed of 800 MHz, it ensures smooth operation for everyday tasks, making your computing experience more efficient. Operating at CL6 latency, it provides quicker data access, allowing you to run applications without delays. As a DDR2-SDRAM, this memory is compatible with a variety of systems, ensuring versatility. Upgrading your RAM with this product can significantly improve multitasking capabilities, making it a great choice for users seeking reliability and speed.

What We Like
Enhances computer performance
Fast 800 MHz speed
Low latency CL6
Compatible with various systems
Improves multitasking capabilities
#TOP 8

Kingston Technology ValueRAM 1 GB, DDR2 SDRAM

KVR667D2SO/1GR
Kingston Technology ValueRAM 1 GB, DDR2 SDRAM Cover
Kingston Technology ValueRAM 1 GB, DDR2 SDRAM, 667 MHz 1 GB DDR2 667 MHz Memory Module

Features
#TOP 9

Hynix HYMP112U64CP8-S6 1GB 1Rx8 1.8V 240-Pin DIMM PC2-6400U-666-12 800MHz DDR2 Desktop PC Memory

HYMP112U64CP8-S6
Green
Hynix HYMP112U64CP8-S6 1GB 1Rx8 1.8V 240-Pin DIMM PC2-6400U-666-12 800MHz DDR2 Desktop PC Memory Cover
Hynix HYMP112U64CP8-S6 1GB 1Rx8 1.8V 240-Pin DIMM PC2-6400U-666-12 800MHz DDR2 Desktop PC Memory

Features
Memory Type - Single 1GB DDR2 Memory Module
Manufacturer - Hynix
Speed And Voltage - PC2-6400U, 800MHz, 1.8V, CL6
Part Numbers - HYMP112U64CP8-S6 / PC2-6400U-666-12
Compatible With - Desktop PC's
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is DDR2 Sdram in computer?

DDR2-SDRAM is a high-performance synchronous dynamic random-access memory interface. It is the successor to DDR-SDRAM. It offers new features, greater bandwidth and lesser power consumption than its predecessor. DDR2-SDRAM was succeeded by DDR3-SDRAM.

2. Are DDR2 RAM still available?

Let's look at DDR2 and DDR3 RAM differences first. While you're unlikely to find DDR2 RAM in many places today (it did become available back in 2004) it's still useful for comparison. While original-generation DDR RAM ran two data transfers per clock cycle, DDR2 RAM can produce four transfers per cycle instead.

Editor's Notes

During our ddr2 sdram computer memory research, we found 220 ddr2 sdram computer memory products and shortlisted 9 quality products. We collected and analyzed 13,253 customer reviews through our big data system to write the ddr2 sdram computer memory list. We found that most customers choose ddr2 sdram computer memory with an average price of £20.00.

The ddr2 sdram computer memory are available for purchase. We have researched hundreds of brands and picked the top brands of ddr2 sdram computer memory, including Kingston, Lenovo, Rasalas, D DUOMEIQI, Hynix.

Written by
Tom Law Avatar

Tom Law is an adventurer who has captured his love for nature into all of his works. A native of Newcastle, Tom has always wanted to share beautiful stories alongside the lovely sights of nature. Fortunately, he took into photography on one of his many journeys and gradually grew a passion for it. Tom Law is now an expert photographer who tours the world while creating and keeping memories of his adventures. He frequently puts his thoughts and experiences into writing.