Overview AMS 2 Pro Upgrade Kit with Filament Buffer:For X1/P1 printer owners that only plan to connect one AMS 2 Pro.AMS 2 Pro Upgrade Kit with AMS Hub:For X1/P1 printer owners that plan to connect more than one AMS 2 Pro. For X1/P1 Series Printer: 1. Drying Function Requirement: - A power adapter must be used when enabling the drying function to ensure sufficient power. 2. Connecting multiple AMS 2 Pro units together: - If the drying function is enabled for multiple units, each AMS 2 Pro requires its own Switching Adapter. 3. Non-Drying Function Use: - The Switching Adapter can be omitted if the drying function is not used. Notes: 1. For H2D Printer: - You can directly connect multiple AMS 2 Pro units using the 6-pin cable. 2. For X1/P1 Series Printer: - If you plan to connect multiple AMS 2 Pro units together, you will need to purchase the AMS 2 Pro Upgrade Kit with AMS Hub- The AMS 2 Pro is compatible with X1/P1 series printers for multi-material printing. - You need to use the 6-pin cable included in the AMS 2 Pro package to connect the AMS Hub/Filament Buffer to the H2D Printer. The 6-pin cable included with the AMS Hub is designed exclusively for the AMS ONLY. In the Box AMS 2 Pro Upgrade Kit with Buffer: - Filament Buffer *1- Bambu Bus Cable - 4Pin *1- AMS 2 Pro Switching Adapter *1 - PTFE Tube Coupler *3 AMS 2 Pro Upgrade Kit with Hub: - AMS Hub*1- Bambu Bus Cable - 4Pin *1- AMS 2 Pro Switching Adapter *1 - PTFE Tube Coupler *3