Free Shipping available on most orders $49.00 & up.

Get Details. »
Memory Trade-in Rebate
OWC Upgrades for:

iMac October 2009

iMac® Intel® Core™ 2 Duo, Intel Core i5, Intel Core i7 For iMac "October 2009" models with Model ID: iMac10,1; iMac11,1
How to find Model ID | Model ID not listed? Click here!

For iMac "October 2009" models with processors: • 21.5" 3.06GHz • 21.5" 3.3GHz • 27" 3.06GHz • 27" 3.3GHz • 27" i5 2.6GHz • 27" i7 2.8Ghz
• Install Pairs (2 at a time) for best performance
• Maximum of 16GB Total Memory Supported
4GB Kit 2GB x 2 4GB Kit 2GB x 2 $27.99 ADD TO CART 8GB Kit 4GB x 2 8GB Kit 4GB x 2 $64.99 ADD TO CART 16GB Kit 4GB x 4 16GB Kit 4GB x 4 $127.99 ADD TO CART
View all memory options for iMac "October 2009" models Why do I need more memory? | Warranty Safe Upgrade | Performance Tests
OWC Memory Other World Computing™ Memory
2.0GB PC8500 1066MHZ SO-DIMM Module w/Lifetime Warranty
Same Day
4.0GB PC8500 1066MHZ SO-DIMM Module w/Lifetime Warranty
4.0GB PC8500 1066MHZ SO-DIMM Kit (2GB + 2GB) w/Lifetime Warranty
Same Day
8.0GB PC8500 1066MHZ SO-DIMM Kit (4GB + 4GB) w/Lifetime Warranty
16.0GB PC8500 1066MHZ SO-DIMM Kit (4 x 4GB) w/Lifetime Warranty
Same Day
16.0GB PC3-8500 1066MHZ SO-DIMM Kit (8GB + 8GB) w/Lifetime Warranty
Same Day
(for 27" i5/i7 only)
32.0GB PC3-8500 1066MHZ SO-DIMM Kit (4 x 8GB) w/Lifetime Warranty
Same Day
(for 27" i5/i7 only)
Featured Hard Drives

Featured External Storage
Power and data via one cable for
an ultra clean look and portability.
Drive Kit
for all Apple 21" or 27" iMac 2009 Models

General servicing kit for iMac
Other External Storage Options
OWC Warranty
All OWC Memory is covered by an OWC Memory Lifetime Limited Warranty including the OWC Lifetime Advanced Replacement Program and 30 Day Money Back Guarantee! This warranty shows our commitment and confidence in the product we sell. OWC certifies and tests ALL OWC memory to ensure that this memory meets or exceeds the specifications for those systems a module is listed as being correct/compatible with. Unlike the competition, OWC owns and maintains our own lab that includes nearly every Apple/Mac model we list compatibility for.

In addition to the long testing every OWC module undergoes before shipping (most just short test if they test at all), we also continuously batch test modules in the actual machines. You can count on OWC to consistently deliver the top quality memory products you need, correct for your system for a lifetime of reliable operation.

Click here for Warranty/Guarantee Details
Free Do It Yourself Installation Videos
Apple iMac Upgrades Installation Videos

With the right tools you can install iMac memory module or hard drive right in the comfort of your own home. Our exclusive installation videos show you how.

What to do with the replaced memory or hard drive?
Click for more details including current memory and hard drive trade in offers.
iMac October 09  
Memory Installation
High | Med | Low