Ynzal Marketing Corporation

OWC Memory Upgrades For 27″ & 21.5″ iMac (Late 2009)

iMac (October 2009) Memory Upgrades

Actual product may differ slightly in appearance.

OWC Memory trade-in rebate

Memory trade-in rebate

Send us your old memory when you upgrade and we’ll give you a rebate!


OWC Memory


  • This Mac has four available memory slots.
  • Install in pairs for best performance.
  • Backed by an OWC Limited Lifetime Warranty.


OWC Memory Upgrades For 27″ & 21.5″ iMac (Late 2009)

Up to 32GB memory1

Works with the following Model IDs

  • iMac10,1
  • iMac11,1
  • Rigorously in-house lab tested
  • Easy DIY install videos
  • OWC MaxRAM Certification
  • Lifetime advanced replacement warranty
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