![How to Mirror Specific Displays in OS X: Mirror some, but not all of your monitors on an Apple system - MacFinder Blog How to Mirror Specific Displays in OS X: Mirror some, but not all of your monitors on an Apple system - MacFinder Blog](https://macfinder.co.uk/wp-content/uploads/2015/04/OS-X-System-Preferences-Displays-to-mirror-specific-displays.png)
How to Mirror Specific Displays in OS X: Mirror some, but not all of your monitors on an Apple system - MacFinder Blog
![Amazon.com: avedio links HDMI Splitter 1 in 2 Out, 4K HDMI Splitter for Dual Monitors Duplicate/Mirror Only, 1x2 HDMI Splitter 1 to 2 Amplifier for Full HD 1080P 3D with 5ft HDMI Amazon.com: avedio links HDMI Splitter 1 in 2 Out, 4K HDMI Splitter for Dual Monitors Duplicate/Mirror Only, 1x2 HDMI Splitter 1 to 2 Amplifier for Full HD 1080P 3D with 5ft HDMI](https://m.media-amazon.com/images/I/61ejR57-x9L.jpg)
Amazon.com: avedio links HDMI Splitter 1 in 2 Out, 4K HDMI Splitter for Dual Monitors Duplicate/Mirror Only, 1x2 HDMI Splitter 1 to 2 Amplifier for Full HD 1080P 3D with 5ft HDMI
![How to disable the Macbook internal display and only use the external display on Snow Leopard? - Ask Different How to disable the Macbook internal display and only use the external display on Snow Leopard? - Ask Different](https://i.stack.imgur.com/iiFsO.png)