Connecting New iMac Retina to NEC Display
I have a new iMac Retina and would like to connect my older NEC P221W display as a second display for photo image processing. The NEC has both DVI & sub-D ports. Of course the iMac has Thunderbolt 3 & USB ports. What would be the recommended way to connect the second display to the iMac? Thank you for your help
MacBook Pro, OS X El Capitan (10.11.6)