here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
Meet Your Seller
Visit OWC Store
FOLLOW
OWC 4GB (4x1GB) DDR2 533 PC2-4200 CL4 1Rx8 240-pin 1.8V Non-ECC UDIMM Memory RAM Module Upgrade Kit for Select Desktops
- OWC 4GB UPGRADE: Consists of 4pcs of 1GB DDR2 533 PC2-4200 CL4 1Rx8 240-pin 1.8V Non-ECC Unbuffered DIMM Memory RAM Module Upgrade Kit for Select Desktops.
- 100% COMPLIANT: JEDEC-Standard and ROHS Compliant. Warranty-Safe Upgrade. Designed and Tested to Meet or Exceed all Manufacturer OEM Specs.
- INCREASED PERFORMANCE: Memory Upgrades are the Most Effective and Easy Way to Boost your PC's Performance.
- INDUSTRY LEADING: Consumer-friendly Advanced Replacement Program and Limited Lifetime Warranty, which includes Free Tech Support by Other World Computing.
- EASY INSTALLATION: In Most Cases, Installing Memory is an Easy DIY project. Watch our OWC Basic Installation Video for Help.
+
+
Overview
Specs
Reviews
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
OWC DDR2 memory is Fully compliant with JEDEC specifications, ROHS compliant, providing a warranty safe upgrade. OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential and speed up overall responsiveness. Become a multitasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time. We test every OWC memory module at our in house lab so you can upgrade with the confidence that your memory is built to last.
We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service. OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.
We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service. OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- Read full details
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 60 days
- This item is covered by OWC Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...
The OWC 4GB DDR2-533 kit includes four 1GB, 240-pin, 1.8V non-ECC unbuffered DIMMs for select desktop PCs that support these memory specifications.
Recommended For
- Owners of a compatible DDR2-533 desktop who want to fill four memory slots with a matched 4GB kit, especially when the system’s supported maximum is 4GB.
- People refurbishing an older desktop for lightweight Linux use or simple, low-demand tasks, when the computer supports this desktop memory type and benefits from more RAM.
- Retro-PC builders restoring a DDR2-era desktop who need four 1GB modules rather than a larger-capacity kit.
Real-World Use Scenarios
- On a compatible DDR2 desktop that is running short of memory, replacing a smaller configuration with this 4GB kit can reduce slowdowns during light browsing, email, and document work; it will not fix delays caused by an older processor or hard drive.
- When refurbishing a legacy desktop for basic everyday tasks, this kit can bring a supported system to 4GB without replacing its DDR2 platform; check the motherboard’s supported capacity and module layout before installing all four sticks.
- For a compatible older PC used with a lightweight operating system, 4GB can provide room for routine browsing, spreadsheets, email, and media playback; the experience still depends on the computer’s processor, storage, and software.
- On an older desktop that slows down when several programs are open, increasing memory to 4GB may make switching between modest workloads feel smoother if the previous setup was running out of RAM; extra memory alone does not make the CPU or storage faster.