For Business and Education
• Expand your Samsung Interactive Pro 4 WM55B and WM65B display with additional connections and functions.
• Provides additional ports. (1x HDMI, 1x USB-C, 2x USB-A, 1x USB-B and 1x USB-B Touch-Out)
• Remove or mount this interface board at any time for additional functionality.
• Only compatible with the WM55B and WM65B.
https://www.samsung.com/us/business/displays/accessories/trays/flip-2-tray-cy-tf65bbcxen/