So if you have a horizontal arrangement (which you can change in the Displays System Preferences pane) , select "Bottom" for the Dock location in the Dock System Preferences pane, and if you move the cursor to the Bottom of any of the monitors the Dock should appear there in a second or two (I verified this in a two
Officially, the answer is “up to two external displays.” Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on up to two external displays, both at millions of colors.
Native resolution: 2880 x 1800 at 220 pixels per inch. Support for millions of colors. 13-inch MacBook Pro models introduced in late 2012 or later. Native resolution: 2560 x 1600 at 227 pixels per inch.
The Thunderbolt 3 port has the same design as the USB-C port. It's speed allows for quicker access more data when compared to USB-C. Thunderbolt 3 works at 40Gbps while USB-C works at 10 Gbps. Thunderbolt 3 can present video content on two 4K displays or one 5k display while USB-C can present one 4K display.
The only Apple supported method for running two traditional external displays (HDMI, DisplayPort, Mini DisplayPort, DVI or VGA), in addition to power and data, with a single connection to a MacBook is by using specific models of Thunderbolt 3 tethered docking stations.
Under “Graphics and Video Support” (or similar), you should see something like, “Simultaneously supports full native resolution on the built-in display, and up to 2560 by 1600 pixels on up to two external displays.” Recent MacBook Pro models can support four external displays at 4K, or two at 5K.
Single Cable, Dual External Displays
The only Apple supported method for running two traditional external displays (HDMI, DisplayPort, Mini DisplayPort, DVI or VGA), in addition to power and data, with a single connection to a MacBook is by using specific models of Thunderbolt 3 tethered docking stations.Since the MacBook Air has one Thunderbolt port your best options are going to be limited to monitors that support either Thunderbolt or DisplayPort daisy chaining or you will need to use a dock.
Apple macOS does not support DisplayPort daisy-chaining, also known as multi-stream, or MST, on any of their computers, from MacBooks to MacBook Pros to iMac Pros to Mac Pros, even if they sport Thunderbolt 3. There is no way to “make it work” on Apple hardware except to run Windows via Boot Camp.
Use multiple displays with your Mac Pro (2019) Learn how to connect multiple displays (such as 4K, 5K, and 6K displays) to your Mac Pro (2019) using Thunderbolt 3 and HDMI. You can connect up to 12 displays to your Mac Pro depending on the graphics cards installed. Use the Radeon Pro 580X MPX Module with your Mac Pro.
MacBook Pro with Retina display can drive four screens simultaneously. We test the MacBook Pro with Retina display to see if it can run three external monitors at once.
Using this MacBook Air external display port -- and the correct cable, which you have to buy -- you can connect your MacBook Air to an external monitor. 2. Dual-link DVI output - requires a Mini DisplayPort to Dual-Link DVI Adapter. HDMI output - requires a third-party Mini DisplayPort to HDMI Adapter.
