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OWC MaxRAM Memory Certification
Get up to double the amount of RAM than factory supports
Fully tested and Certified to work properly.
Why Buy OWC Brand Memory?
  • Meets or exceeds manufacturer specifications.
  • Rigorously in-house lab tested to ensure superior quality, compatibility and reliability.
  • Backed by industry leading lifetime advanced replacement. If you need your OWC memory replaced, we will ship to you same day.
OWC MAXRAM logo The OWC 'MaxRAM' Certification Program determines the maximum amount of memory that can be installed in a Mac as validated by a series of comprehensive, in-house laboratory tests. While OWC "MaxRAM" configurations exceed Apple's officially supported maximums, all OWC brand memory upgrades are assured to perform flawlessly and are covered by a Lifetime Advance Replacement Warranty and Money Back Guarantee.
Below is a list of Macs that have been OWC MaxRAM Certified to be capable of utilizing up to double the memory than Apple specifies. You can also view all of OWC Memory options for all computers.
Mac Pro Apple Mac Pro
  Factory Supported OWC Tested & Certified
Apple 16GB Actual 32GB
Apple 16GB Actual 32GB
Apple 32GB Actual 64GB
Apple 16GB Actual 48GB
Apple 32GB Actual 96GB
Apple 32GB Actual 48GB
Apple 32GB Actual 48GB
Apple 64GB Actual 128GB*
Apple 64GB Actual 128GB*
Apple 64GB Actual 128GB*
 
MacBook Pro MacBook Pro
  Factory Supported OWC Tested & Certified
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 8.0GB
Apple 4.0GB Actual 6.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
 
MacBook MacBook
  Factory Supported OWC Tested & Certified
Apple 2.0GB Actual 3.0GB
Apple 2.0GB Actual 3.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 8.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 8.0GB
Apple 4.0GB Actual 16.0GB
 
iMac iMac
  Factory Supported OWC Tested & Certified
Apple 256MB Actual 512MB
Apple 512MB Actual 1.0GB
Apple 1.0GB Actual 2.0GB
Apple 1.0GB Actual 2.0GB
Apple 1.0GB Actual 2.0GB
Apple 1.0GB Actual 2.0GB
Apple 4.0GB Actual 6.0GB
Apple 4.0GB Actual 6.0GB
Apple 16.0GB Actual 32.0GB
Apple 16.0GB Actual 32.0GB
Apple 16.0GB Actual 32.0GB
Mac mini Mac mini
  Factory Supported OWC Tested & Certified
Apple 2.0GB Actual 4.0GB**
Apple 4.0GB Actual 8.0GB
Apple 4.0GB Actual 8.0GB
Apple 8.0GB Actual 16.0GB
Apple 8.0GB Actual 16.0GB
 
eMac eMac
  Factory Supported OWC Tested & Certified
Apple 1.0GB Actual 2.0GB
Apple 1.0GB Actual 2.0GB
 
iBook Mac mini
  Factory Supported OWC Tested & Certified
Apple 320MB Actual 544MB
Apple 320MB Actual 576MB
 
PowerBook G4 PowerBook G4
  Factory Supported OWC Tested & Certified
Apple 640MB Actual 1152MB
Apple 1.0GB Actual 2.0GB
 
PowerBook G3 PowerBook G3
  Factory Supported OWC Tested & Certified
Apple 192MB Actual 512MB
Apple 192MB Actual 512MB
Apple 384MB Actual 512MB
 
Power Mac G3 Power Mac G3
  Factory Supported OWC Tested & Certified
Apple 192MB Actual 768MB
Apple 384MB Actual 768MB
Apple 384MB Actual 768 MB


*Current Mac OS X versions are unable to utilize more then 96GB RAM due to an operating system limitation. 128GB can be fully utilized by a 2009-2010 Mac Pro if running Boot Camp with 64-bit versions of Windows XP and later as well as with 64-bit versions of Linux.

**Although limited to physically utilizing a maximum of 3GB, there is a performance benefit due to 128 Bit addressing when 4GB (2GB x 2 Matched set) is installed.
MaxRAM is a trademark of New Concepts Development Corporation, registered in the U.S. Patent and Trademark Office. Apple, eMac, iBook, iMac, iPhone, iPod, iTunes, Mac, Mac Pro, MacBook, MacBook Pro, Macintosh, Power Mac, PowerBook, OS X, and SuperDrive are trademarks of Apple Inc., registered in the U.S. and other countries. Other marks may be the trademark or registered trademark property of their owners.
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