For the assembly of a drybox for multiple spools a suitable storage box with 50-80l of volume is required (alternative Bambu Lab AMS), two short cables for soldering the flat connectors as well as the 3D printed parts. The STL models for these can be downloaded at Printables.com You also find sources of supplies for all parts there.Manufacturer Information See MDL-3 dehumidifier and USB-C-VREG2.