You will need MiniDisplay Port to HDMI cable. To use an iMac as a monitor you will require a compatible cable. How To use iMac as 2nd Monitor on Macbook Pro? One is via cable and the second is through a common network. So there are two ways to connect an iMac to Macbook. Controlling iMac using your Macbook via Sidecar setup.Using iMac as a secondary display or monitor via MiniDisplayPort Cable.Here are different ways of connecting the iMac to the MacBook pro. Also, you can use the iMac’s disc drive and see its content on your Macbook. You can transfer data between systems, use iMac as a secondary display or even control iMac using Macbook. It is best when you are having an iMac and MacBook both at home or office. If you’re adding a second monitor to your MacBook, you may want to consider going with a bigger 4k monitor to maximize your screen real estate or a compact flat panel display that you can take with you on the go.Yes, you can connect an iMac to a Macbook Pro and use it in different ways. If you have a desktop Mac that already has a monitor, matching that monitor with another identical unit provides the smoothest experience. To choose the right monitor, you need to consider the display's size, resolution, color accuracy, and other characteristics. If you’ve never set up dual monitors before, finding the right monitor can seem like a daunting prospect. The M1 MacBooks and MacBook Pro models can use one external monitor and their built-in display simultaneously. Officially, MacBook Air and MacBook Pro models using the M1 chip only support one external monitor. If you want to add a second monitor to the M1 Mac mini, you have to use the Mac mini's HDMI port. The Mac mini running Apple's M1 chip can only use one Thunderbolt/USB 4 monitor at a time.

Use imac as second monitor