Last updated: Mar 3, 2026, 11:36 AM
Overview of Flex 3 hardware compatibility with previous generation hardware.
| For additional guidance on hardware replacement, see Upgrade Old Generation Hardware to Flex 3 Terminal and Printing Hub. |
Flex 3 features an upgraded system architecture designed in accordance with USB standards, which adds flexibility to configurations, future-proof devices, and enables more powerful and reliable system performance. Notes on device compatibility:
If you are upgrading from a Flex 14” device to a Flex 3 device, the information below helps you understand which hardware works best with your current setup.
Note: These upgrade paths also apply to Elo terminals. Epson printers print over the network and do not need to be replaced. Existing mounts and stands can typically be reused or updated as needed.
Note: The Flex 3 Guest Display is designed to work with Flex 3 terminals only. It cannot be used with Flex 14” devices and cannot be used on its own unless you already have a Flex 3 terminal or display.
Tip: A longer guest display cable may be helpful for unique counter layouts or extended reach.
Note: To maintain an Internet connection when using the Printing Hub (TP300) with Flex 14, use one of the following approaches:
Note: While printing receipts over the network will work the same with the Printing Hub, the USB cable will not provide the same functionality when connected to Flex 14”. To maintain power and networking functionality, the best approach is to connect another Toast receipt Printer with Flex 14”.
Note: The Kiosk image above to the right is the Toast Flex 3 Countertop Terminal Kiosk.
| Flex 3 Terminal | Hardware Name | Hardware Image | Compatibility |
| Toast Printing Hub | |||
| 65W Power Supply | |||
| Flex 3 Guest Display |
| Flex 3 Terminal | Hardware Name | Hardware Image | Compatibility |
|
Toast Receipt Printer TP200
Note: The following steps must be followed to ensure compatibility with the Flex 3 Terminal and Toast Receipt Printer (TP200). For USB Hub Compatibility, see .
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| Toast Flex for Guest | |||
| 65W Power Supply |
| Flex 14" | Hardware Name | Hardware Image | Compatibility |
| Toast Printing Hub | |||
| Flex 3 Guest Display | |||
| 65W Power Supply |