256MB OWC Memory Upgrade Module

We're sorry, but this item is no longer for sale. However, there may be more Memory items available.

256MB OWC Memory Upgrade Module

PC100 SDR SDRAM 100MHz SO-DIMM for PowerBook G3 FireWire (2000), PowerBook G4 400/500MHz; iBook G3 Models


Mfr P/N: TPW256L OWC SKU: OWC100SO256168L

Memory Built by Mac People, for Mac People (and PC too), for Over 30 Years

OWC Memory Trade-in Rebate

Trade In Your Original Memory and SAVE!

Within 60 days from the purchase date of qualifying OWC memory, you can choose to trade in your old memory for a cash rebate! Learn More »

availability

Overview

OWC Memory for Mac & PC

OWC Memory. Built for Macs + PCs.

Experience your computer's true performance potential.

Improve System Speed

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.

More Apps. More Files

Become a multi-tasking 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.

Save $$ vs Factory

Save BIG vs factory memory options. Plus, select among options not offered by the factory. OWC makes it easy to find the perfect upgrade to fit your needs.

Lab Tested Compatibility

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.

Lifetime Warranty

We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service.

Step-by-Step Videos

Our detailed install videos guide your upgrade from start to finish. We provide all the steps to make your OWC Memory upgrade DIY easy.

OWC Logo

Experience the OWC Difference

Rely on the trusted name for memory upgrades, drives and accessories for over 30 years. Your OWC Memory upgrade was built by Mac and PC people, for Mac and PC people. Our expert support team is always a call or click away. You can talk to an actual human who will kindly provide advice and guidance for any questions you may have.

Being helpful and treating others the way you would want to be treated is not just a novel idea. It’s how we do business. It's how we’re built. It's what we’ve been doing since 1988.

IncludesIncludes

Back to top

    Data Rate

    • 100MT/s

    I/O Clock Speed

    • 100MHz

    Registration

    • Non-registered

    Error Correction

    • Non-ECC

    Cycle Time

    • 10.0 ns

    Form Factor

    • SO-DIMM

    Type of Memory

    • SDR SDRAM

    PC Speed

    • 100

    Timing

    • CAS = 2.0
    • Full Parameters: 2-2-2

    Bandwidth

    • 800MB/s

    JEDEC

    • Fully compliant with JEDEC specifications

    Total Capacity

    • 256MB

    Voltage

    • 3.3 Volts

    Pin Count

    • 144-pin

    Printed Circuit Board Type

    • Low noise 6-layer PCB

    RoHS Compliant

    • Yes

    Ambient Temperature

    • Operating: 32°F to 185°F (0°C to 85°C)

    Compatibility & Installation VideosCompatibility & Installation Videos

    Back to top
    iMac G3 (14-inch, Early 1999)
    iMac G3 (14-inch, Early 1999)
    Early 1999
    Model ID: iMac,1
    266MHz PowerPC G3 & 333MHz PowerPC G3
    iMac G3 (14-inch, Mid 1998)
    iMac G3 (14-inch, Mid 1998)
    Mid 1998
    Model ID: iMac,1
    233MHz PowerPC G3
    PowerBook G3 Bronze/Lombard
    PowerBook G3 Bronze/Lombard
    Mid 1999
    Model ID: PowerBook1,1
    333MHz PowerPC G3 & 400MHz PowerPC G3
    Detailed Specs
    PowerBook G3 PDQ
    PowerBook G3 PDQ
    Late 1998
    Model ID: 406
    233MHz PowerPC G3 & 266MHz PowerPC G3 & 300MHz PowerPC G3
    Detailed Specs
    PowerBook G3 Wallstreet
    PowerBook G3 Wallstreet
    Mid 1998
    Model ID: 314 & 312
    233MHz PowerPC G3 & 250MHz PowerPC G3 & 292MHz PowerPC G3
    Detailed Specs

    PC Compatible

    PC Compatible
    PC Compatible
    4.93 out of 5

    13 out of 14 (92%) reviewers would recommend this product

    Write a Review
    3 star
    2 star
    1 star
    93%
    7%
    0%
    0%
    0%

    OWC Memory

    Working perfectly! Easy buying process!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer3775689022, 
    • Reviewer:Reviewer3775689022
    Response from OWC, Support

    Thank you so much for your fantastic review! We're thrilled that your OWC Memory is working perfectly for you! It's awesome to know that you also found the buying process easy. Your satisfaction means the world to us, and we can't wait to help you with any future needs! Please don't hesitate to contact us with any more questions, comments, or concerns. https://eshop.macsales.com/Service/


    Fantastic online store

    I love OWC. They always have whatever obscure thing I need.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Reviewer4099502384, 
    • Reviewer:Reviewer4099502384
    Response from OWC, Support

    Thank you so much for your amazing review! We are thrilled to hear that you love our online store and that we have been able to provide you with the obscure items you need. Your support means the world to us and we look forward to working with you in the future. Please feel free to contact us if you have any further questions, comments, or concerns.  https://eshop.macsales.com/Service/


    Perfect

    As always perfect product perfect delivery. Thank you

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    ColorfulDeer-32043, 
    • Reviewer:ColorfulDeer-32043
    Response from OWC, Support

    Thank you for choosing OWC for your technical needs. We are thrilled to hear that the memory upgrade is working flawlessly and that the order was delivered in a timely manner! Please feel free to contact us if you have any further questions, comments, or concerns.  https://eshop.macsales.com/Service/


    View More Reviews
    This item has been added to your cart