Last updated: Feb 27, 2026, 1:33 PM
Installation video guide for the Toast Flex 3 Terminal.
Before you get started, confirm that you have all the hardware for installation based on your purchase and configuration. Identify where you want your Toast Flex 3 terminal to be located. Ensure a power outlet and ideally a wall Ethernet port are nearby (measuring the distance to wall outlets prior to installation can save time). Check that you have all configuration devices before beginning Terminal setup.
Note: Kiosk, Kitchen Display, and other configs might include different devices and accessories.
There are two ways to power the Terminal: either with a dedicated power adapter or using the USB Power Plus cable connected to the Printing Hub. If your Terminal does not have a power supply, you will want to use the USB Power Plus cable connected to the Printer as that also provides Internet, USB Hub access, and USB printing.
Power the Flex 3 Terminal With the 65W Power Adapter
Plug in the Orange USB-C Power cable attached to the Power Supply into the port marked in orange and screw in the thumb screw for a secure connection.
Toast Printing Hub (TP300) as the Power Supply
If you intend to use a Toast Flex 3 Guest Display with this terminal, complete the steps found in this article in the section.
Before you get started, identify where you want your Flex 3 Guest Display to be located. Ensure it is within reach of the Toast Flex 3 Terminal using the Green USB-C Cable.
Note: To fully set up the Toast Flex 3 Display, you will need a Toast Flex 3 Terminal.
Card readers can be connected to the Flex 3 Terminal in the following ways:
Internet Connection Options for the Flex 3 Terminal
There are a few ways for the Terminal to connect to the Internet, including:
Note: once connected to one of the Internet sources above, it is possible to switch if a different source is more convenient. Go to Internet settings and enable the source you want to use. For more information, see .
Flex 3 Terminal Wedge installation overview video.
Note: Ensure you have the two screws and screwdriver included in your package to properly install the wedge on the Toast Flex 3 Display.
Toast Flex 3 Terminal Mount installation video.
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Note: Ensure you use the screws from the Display packaging to secure the Display to the Mount. The screws in the Mount package are optimized to work with Flex 22.