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OWC 1GB DDR2 533 PC2-4200 CL4 1Rx8 240-pin 1.8V Non-ECC UDIMM Memory RAM Module Upgrade for Select Desktops
- OWC 1GB UPGRADE: Consists of a single 1GB DDR2 533 PC2-4200 CL4 1Rx8 240-pin 1.8V Non-ECC Unbuffered DIMM Memory RAM Module Upgrade 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.
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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.
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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
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The OWC 4U2D21R801GB is a single 1GB DDR2-533 (PC2-4200) desktop memory module for users upgrading a compatible desktop that requires 240-pin, 1.8V, non-ECC unbuffered DIMM RAM.
Recommended For
- Owners restoring a compatible older desktop or Power Mac G5/iMac G5 who need a 1GB DDR2-533 module matching the system’s supported memory type and speed.
- People keeping a legacy PC in service for lightweight, older software who want to add memory to a machine with a compatible 240-pin DDR2 slot and an available upgrade slot.
- DIY repairers and vintage-computer hobbyists replacing a failed or missing 1GB stick, provided the desktop’s motherboard supports this module’s capacity, speed, and configuration.
- Users with a compatible older system who need a modest memory addition for basic tasks, rather than a large-capacity upgrade; this is a single 1GB module, so check the computer’s maximum supported memory first.
Real-World Use Scenarios
- Adding memory to a compatible older desktop that is short on RAM can give the operating system and open programs more room to work, which may reduce slowdowns caused by memory pressure. The improvement depends on the computer’s existing memory and supported maximum; this 1GB module does not guarantee smooth modern browsing or multitasking.
- Restoring a compatible DDR2-era desktop for offline basics such as writing, reading files, or playing music is a plausible use; the experience will still be limited by the computer’s age, operating system, and total installed memory.
- Replacing a missing or failed memory stick in a compatible older desktop can help return it to service; the motherboard must support this DDR2 desktop module and its capacity and configuration.
- Maintaining or repairing a vintage desktop can call for a specific older memory type; this module may suit that job when the system requires compatible 240-pin DDR2 memory, rather than newer-generation RAM.
- For a DIY repair or upgrade, a desktop owner comfortable opening the case can install the module by following the computer’s service instructions and taking basic static-safety precautions; OWC also provides installation guidance and support.