![Apple: Using iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"? - YouTube Apple: Using iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"? - YouTube](https://i.ytimg.com/vi/TOd4Pa78wu8/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLDdwbpmIIBkewt5a-1g1h3pwIx2IA)
Apple: Using iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"? - YouTube
![Using iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"? - Ask Different Using iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"? - Ask Different](https://i.stack.imgur.com/JEU3z.png)
Using iMac 21.5 mid 2010 as an external monitor of Macbook Pro Retina late 2013 15"? - Ask Different
![display - Using iMac late 2013 as external monitor to HP EliteBook 820 G3 on Windows 10 - Ask Different display - Using iMac late 2013 as external monitor to HP EliteBook 820 G3 on Windows 10 - Ask Different](https://i.stack.imgur.com/MPnI1.png)
display - Using iMac late 2013 as external monitor to HP EliteBook 820 G3 on Windows 10 - Ask Different
![Troubleshooting tips for using an old iMac as an external display for a Thunderbolt 3 Mac | Macworld Troubleshooting tips for using an old iMac as an external display for a Thunderbolt 3 Mac | Macworld](https://www.macworld.com/wp-content/uploads/2023/01/new_2017_imac_two_side-100724913-orig.jpg?quality=50&strip=all)
Troubleshooting tips for using an old iMac as an external display for a Thunderbolt 3 Mac | Macworld
![Apple iMac 21.5 (Mid 2010) Core i3 3.2 GHz, 4GB RAM, 1TB HDD (Renewed) : Amazon.co.uk: Computers & Accessories Apple iMac 21.5 (Mid 2010) Core i3 3.2 GHz, 4GB RAM, 1TB HDD (Renewed) : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/81khQA4qFxL._AC_UF1000,1000_QL80_.jpg)
Apple iMac 21.5 (Mid 2010) Core i3 3.2 GHz, 4GB RAM, 1TB HDD (Renewed) : Amazon.co.uk: Computers & Accessories
![How do the "Mid-2011" Aluminum iMac models compare to the "Mid-2010" models that preceded them?: EveryMac.com How do the "Mid-2011" Aluminum iMac models compare to the "Mid-2010" models that preceded them?: EveryMac.com](https://everymac.com/images/other_images/apple-imac-mid-2011.jpg)