Home  »  Memory  »  iMac  »  27" & 21.5" iMac (Mid & Late 2011)

OWC Memory Upgrades For 27" & 21.5" iMac (Mid & Late 2011)

Up to 32GB memory

Works with the following Model IDs

  • iMac12,2
  • iMac12,1
  • Rigorously in-house lab tested
  • Easy DIY install videos
  • OWC MaxRAM Certification
  • Lifetime advanced replacement warranty

OWC Memory

  • This Mac has four available memory slots.
  • Install in pairs for best performance.
  • All installed memory should be the same speed for best performance.
  • Backed by an OWC Limited Lifetime Warranty.
OWC Memory

Install Videos

Our step-by-step installation videos guide you through upgrading your Mac, iPhone, iPad or iPod.

View all Install Videos »
iMac 2011 memory install video

Solid State Drives

Shop SSD specifically for your iMac Experience the true speed of your mac with an OWC SSD flash storage upgrade. Select your Model ID below.


Recommended Items

4.0TB OWC Mercury Elite Pro<BR>7200RPM USB 3.1/eSATA

4.0TB OWC Mercury Elite Pro7200RPM USB 3.1/eSATA

High-performance 7200RPM dual-drive solution - plug & play RAID 0/1/JBOD

Save $30.24 + Bonus Offer
Add to Cart
12.0TB Enterprise 7200RPM<BR>Tos 3.5" HDD  w/256MB Cache

12.0TB Enterprise 7200RPMTos 3.5" HDD w/256MB Cache

Performance, Reliability, High-Capacity SATA 6Gb/s. 5 Year Enterprise Warranty

Save $180.01 + Bonus Offer
Add to Cart
NewerTech Voyager Dock for 2.5" & 3.5" Drives

NewerTech Voyager Dock for 2.5" & 3.5" Drives

Plug-and-play USB 3.0/2.0 drive dock for 2.5" & 3.5" SATA HDDs & SSDs

Save $15.20
Add to Cart