External Graphic Card for Imac 27' 2011

[Inkanus]

Hi. Is it possible to connect an external graphics card to Imac 27 '2011 without having to connect another monitor? I have this Imac. Everything works great, but it's High Sierra. I wanted Catalina. If you know how to do this, please let me know. Greetings

 

[Amethyst1]

You can hook up an external GPU via Thunderbolt but you won't be able to drive the iMac's internal display from it. This is because the 2011 iMac requires a Thunderbolt input to act as a monitor (in Target Display Mode), and an eGPU does not provide that.

 

[Inkanus]

Thanks for the answer, I understand that this solution is best for mac mini. For now, I will continue to have fun with High Sierra, for me it's a great system. greetings