You can re-terminate the cable...
https://www.newegg.com/p/0Y3-0050-00037#http://
There are many different adapters that re-orient the cable up, down, left, or right. I've never seen one that reverses it, but the length of the adapter would likely make it want to disconnect itself. I've seen very short IEC320 extension cables that it seems would solve the problem. I'd re-terminate it or remove and invert the chassis mount receptacle in the device (or live with it).
https://www.newegg.com/p/0Y3-0050-00037#http://
There are many different adapters that re-orient the cable up, down, left, or right. I've never seen one that reverses it, but the length of the adapter would likely make it want to disconnect itself. I've seen very short IEC320 extension cables that it seems would solve the problem. I'd re-terminate it or remove and invert the chassis mount receptacle in the device (or live with it).