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256MB OWC Memory Upgrade Module

256MB PC100 168 Pin Low Profile
30 Day Money Back Guarantee | Lifetime Advance Replacement Warranty
Memory Image
Product Specs:
OWC Memory fully meets Apple's specifications with special attention to proper thermal specifications.
Memory Trade in
Save money by trading in your original chips! View available memory rebates.
From the purchase date of qualifying memory from OWC, you have 60 days to trade-in your old memory for a cash rebate!
Just fill out OWC's online rebate form or contact OWC Customer Service after you receive and install your new memory.
- Please allow up to 14 Days from the time we receive your memory for testing and rebate processing.
- The OWC Rebate is for up to the same number of memory modules purchased and must be in working order.
Apple Computer Firmware Revision notes:
OWC Memory has been tested and is found 100% compatible with the new Apple Firmware update 4.1.7 and 4.1.8. Many people have experienced problems with memory after installing this latest update, but the memory OWC is providing fully meets all Apple Specs
and is not subject to these problems. Thank you for being an OWC Customer!
This OWC Memory is compatible with... Learn how to find your Mac's model ID or PC specs
PowerMac G3 Blue & White
Power Macintosh G3 (Blue & White)
(January, 1999)
Model ID: PowerMac1,1
300MHz, 350MHz, 400MHz, 450MHz
Detailed specs
Install Videos
PowerMac G3 All-In-One
Power Macintosh G3 (All-in-One)
(April, 1998)
Model ID: 510
233MHz, 266MHz
Detailed specs
PowerMac G3 miniTower
Power Macintosh G3 (Minitower)
(November, 1997)
Model ID: 510
233MHz, 266MHz, 300MHz, 333MHz
Detailed specs
PowerMac G3 Desktop
Power Macintosh G3 (Desktop)
(November, 1997)
Model ID: 510
233MHz, 266MHz, 300MHz
Detailed specs
PowerMac G4
Power Mac G4 (Gigabit Ethernet)
(July, 2000)
Model ID: PowerMac3,3
400GHz, dual 450MHz, dual 500GHz
Detailed specs
Install Videos
PowerMac G4
Power Mac G4 Cube
(July, 2000)
Model ID: PowerMac5,1
450MHz, 500MHz
Detailed specs
Install Videos
PowerMac G4
Power Mac G4 (AGP Graphics)
(September, 1999)
Model ID: PowerMac3,1
350MHz, 400MHz, 450GHz, 500GHz
Detailed specs
Install Videos
PowerMac G4
Power Mac G4 (PCI Graphics)
(August, 1999)
Model ID: PowerMac1,2
350MHz, 400MHz
Detailed specs
Install Videos
iMac G3
iMac (Summer 2001)
(July, 2001)
Model ID: PowerMac4,1
500MHz, 600Mhz, 700MHz
Detailed specs
iMac G3
iMac (Early 2001)
(Febuary, 2001)
Model ID: PowerMac4,1
400MHz, 500Mhz, 600MHz
Detailed specs
iMac G3
iMac (Summer 2000)
(July, 2000)
Model ID: PowerMac2,2
300MHz, 400MHz, 450Mhz, 500Mhz
Detailed specs
iMac G3
iMac (Slot Loading)
(October, 1999)
Model ID: PowerMac2,1
350MHz, 400MHz
Detailed specs
PC Desktop
PC Desktops
Compatible with Intel / AMD Process based PCs capable with the specifications listed above. Memory complies with JEDEC Specifications, document JESD79-3B.

Customer Ratings

Write a Review 4.7 / 5 4 out of 4 (100%) reviewers would recommend this product
Verified Buyer
Reviewer: JayDub Location: Augusta, GA Age: Over 65 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Inexpensive RAM for old PowerMac March 1, 2017 Works great, excellent price, shipped quickly.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: jayjayisokk
Rating: 5/5 Great for the Power Macintosh G3! February 16, 2017 I put 3 of these in my Power Macintosh G3 for a total of 768MB of RAM, and it's really sped up my computer. I was even able to install 10.4 with the help of XPostFacto. Would definitely recommend for anyone with the same computer.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: Anonymous Location: NYC Age: 45-54 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Great for Beige PowerMac G3 January 4, 2016 If your old DIMM's have bitten the dust, these new DIMM's are perfect. Working great so far. Thanks, OWC!

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Sao Paulo, Brazil Age: 45-54 Experience Level: IT Professional Owned Product: less than a month
Rating: 4/5 Shopping safe November 9, 2014 I would like to thank the excellent service offered by OWC. I received my product in perfect condition and on time. I strongly recommend buying in this company. Congratulations.

I would recommend this item to a friend!

OWC Memory 256MB 256MB PC100 Low Profile Mfr P/N: 100SD256168 OWC SKU: OWC100SD256168 OWC Memory Upgrade Module Lifetime Warranty Ships: Same Day
Reviews (4)
only $4.98
Add to CartOther World Computing 100SD256168 In Stock, Click to Buy Now
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