![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
![Apple updates iMacs with Sandy Bridge processors, Thunderbolt ports, FaceTime HD camera and more - 9to5Mac Apple updates iMacs with Sandy Bridge processors, Thunderbolt ports, FaceTime HD camera and more - 9to5Mac](http://9to5mac.com/wp-content/uploads/sites/6/2011/05/imac-mid-2011-back-ports-670x249.jpg)
Apple updates iMacs with Sandy Bridge processors, Thunderbolt ports, FaceTime HD camera and more - 9to5Mac
![Trying to use my 2011 imac running high sierra as an external display for a OC via HDMI to miniDisplay port. Unfortunately I tried to book them up and using the windows ( Trying to use my 2011 imac running high sierra as an external display for a OC via HDMI to miniDisplay port. Unfortunately I tried to book them up and using the windows (](https://preview.redd.it/trying-to-use-my-2011-imac-running-high-sierra-as-an-v0-cwbbt9l5ecua1.jpg?width=640&crop=smart&auto=webp&s=f24eda6990fc6d257bccc268ff844d4e450f3eee)
Trying to use my 2011 imac running high sierra as an external display for a OC via HDMI to miniDisplay port. Unfortunately I tried to book them up and using the windows (
![Looking to connect a mid 2011 iMac to an external monitor, these are my connections available. What are my options? : r/applehelp Looking to connect a mid 2011 iMac to an external monitor, these are my connections available. What are my options? : r/applehelp](https://i.redd.it/tlj9efuagwg71.jpg)
Looking to connect a mid 2011 iMac to an external monitor, these are my connections available. What are my options? : r/applehelp
![Amazon.com: Mini DisplayPort to HDMI Adapter for iMac Mid 2011(27-inch, 21.5 inches) Mini DP to HDMI Adapter Compatible with MacBook Air/Pro, Microsoft Surface Pro/Dock, Projector and More 1-Pack : Electronics Amazon.com: Mini DisplayPort to HDMI Adapter for iMac Mid 2011(27-inch, 21.5 inches) Mini DP to HDMI Adapter Compatible with MacBook Air/Pro, Microsoft Surface Pro/Dock, Projector and More 1-Pack : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71jjMBFkh5L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Mini DisplayPort to HDMI Adapter for iMac Mid 2011(27-inch, 21.5 inches) Mini DP to HDMI Adapter Compatible with MacBook Air/Pro, Microsoft Surface Pro/Dock, Projector and More 1-Pack : Electronics
![Amazon.com: Hagibis iMac Hub with 4K@60Hz HDMI, USB C 3.1, USB 3.0 Ports and SD/Micro SD Card Reader, USB-C Clamp Hub USB C Docking Station for 2021 iMac 24 inch (with HDMI) : Amazon.com: Hagibis iMac Hub with 4K@60Hz HDMI, USB C 3.1, USB 3.0 Ports and SD/Micro SD Card Reader, USB-C Clamp Hub USB C Docking Station for 2021 iMac 24 inch (with HDMI) :](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/31mH3wBmGZL._AC_.jpg)
Amazon.com: Hagibis iMac Hub with 4K@60Hz HDMI, USB C 3.1, USB 3.0 Ports and SD/Micro SD Card Reader, USB-C Clamp Hub USB C Docking Station for 2021 iMac 24 inch (with HDMI) :
![This is how you should use SATA ports from iMac (27-inch, Mid 2011) if you add a SSD (extracted from Apple Technician Guide) : r/mac This is how you should use SATA ports from iMac (27-inch, Mid 2011) if you add a SSD (extracted from Apple Technician Guide) : r/mac](https://i.redd.it/o5iuy4jmorx41.jpg)
This is how you should use SATA ports from iMac (27-inch, Mid 2011) if you add a SSD (extracted from Apple Technician Guide) : r/mac
![Apple updates iMacs with Sandy Bridge processors, Thunderbolt ports, FaceTime HD camera and more - 9to5Mac Apple updates iMacs with Sandy Bridge processors, Thunderbolt ports, FaceTime HD camera and more - 9to5Mac](http://9to5mac.com/wp-content/uploads/sites/6/2011/05/imac-mid-2011-two-up-computer-thunderbolt-nas1-670x387.jpg)