Power cord iMac
What do I need to have to power up my desktop
iMac
Question marked as
If you're referring to 'main power cable' for older iMac (21-in/27-in) from
some resellers, or as replacements from some authorized Apple retailers.
[This cord goes into recess in back of computer display.]
Given those other images and Cinema display cord..
..I'm not so sure what you're seeking.
Cable input varies by region & electrical code.
See an example with image, for US/Canada.
https://eshop.macsales.com/item/Apple/9230285U/