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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 $31.99 ADD TO CART 8GB Kit 4GB x 2 8GB Kit 4GB x 2 $59.00 ADD TO CART 16GB Kit 4GB x 4 16GB Kit 4GB x 4 $117.50 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
Same Day
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
Same Day
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.
Hard Drive Upgrade Options Featured for iMac*

Easy to Upgrade your iMac (October 09) Hard Drive
*New iMac models do not have universal manufacturer compatibility, use the steps below to choose the hard drive right for your machine.

Check your Hard Drive Manufacturer on your Machine
Step 1: Click the Apple Icon (top left
corner) and Select 'About This Mac'
Step 2: In the new window titled 'About This
Mac' click the 'More Info...' button.
Step 3: Click on 'Serial-ATA' over to
the left of the widow that just opened.
Step 4:
• Your Hard Drive Manufacturer's Number will be    located at the top under "NVidia MCP79 AHCI"
• If it states..
   "WDC WD", you have a Western Digital Drive
   "ST", you have a Seagate Drive
• Click your Hard Drive Manufacturer below for all    listed options.
Seagate Hard Drives
Click Here for Seagate Hard Drives
Western Digital Drives
Click Here for WD Hard Drives
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
General servicing kit for iMac