![iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com](https://everymac.com/images/cpu_pictures/apple-imac-mid-2010-21.jpg)
iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com
![A-Tech 32GB (4x8GB) RAM for Apple iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com A-Tech 32GB (4x8GB) RAM for Apple iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com](https://m.media-amazon.com/images/I/816i2yyo7AL._AC_UF894,1000_QL80_.jpg)
A-Tech 32GB (4x8GB) RAM for Apple iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
![A-Tech 8GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module at Amazon.com A-Tech 8GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module at Amazon.com](https://m.media-amazon.com/images/I/817AWVLU+mL._AC_UF894,1000_QL80_.jpg)
A-Tech 8GB RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Module at Amazon.com
![Hi, i have a 2011 iMac with 16gb of ram and 1tb ssd, I'm wondering which Mac OS will work better on the iMac with a patcher, macOS Big Sur or Monterey? Hi, i have a 2011 iMac with 16gb of ram and 1tb ssd, I'm wondering which Mac OS will work better on the iMac with a patcher, macOS Big Sur or Monterey?](https://preview.redd.it/e46e31mvled81.jpg?auto=webp&s=7f45e03b29914d3aa81626f5142d02fd9be1181b)
Hi, i have a 2011 iMac with 16gb of ram and 1tb ssd, I'm wondering which Mac OS will work better on the iMac with a patcher, macOS Big Sur or Monterey?
![OWC 32GB MaxRAM Upgrade Turns Apple iMac Into Ideal Workstation With Double The Factory Memory At 40 Percent Lower Cost OWC 32GB MaxRAM Upgrade Turns Apple iMac Into Ideal Workstation With Double The Factory Memory At 40 Percent Lower Cost](https://eshop.macsales.com/blog/wp-content/uploads/2012/05/PR_iMac32GBmemory.jpg)
OWC 32GB MaxRAM Upgrade Turns Apple iMac Into Ideal Workstation With Double The Factory Memory At 40 Percent Lower Cost
![Apple iMac 21.5 A1311 (Mi 2011) (I524S1648S) · Reconditionné - Ordinateur Mac reconditionné Apple sur LDLC Apple iMac 21.5 A1311 (Mi 2011) (I524S1648S) · Reconditionné - Ordinateur Mac reconditionné Apple sur LDLC](https://media.ldlc.com/r1600/mkp/d7eaa9db99c04e69b43b4b1b08525b2a.jpeg)