iMac and an external monitor

  ronfree2003 13:58 09 Nov 2016

How can I connect an external monitor to use as an extended desktop to my iMac (Retina 4K, 21.5-inch, Late 2015) Running Sierra 10.12.1

  mgmcc 16:11 09 Nov 2016

This Thunderbolt to HDMI cable is what I use with a MacMini (don't ask!), although I have also used it with my iMac. Alternatively, a Thunderbolt to HDMI adapter to use in conjunction with a standard HDMI cable.

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