I have a 2013 iMac 27 as a desk unit but am adding a standup desk next to it. I would like to work interchangeably at the standup desk what additional monitor might I be able to use to have complete sync and connectivity for mouse and keyboard?
basically just need to work at either station and maintain continuity with the IMac desk unit.
iMac (27-inch, Late 2013), OS X El Capitan (10.11.1)