Trianglelab KMS V1.0 Klipper Multi Color System Kms MMU KMS is an automatic consumables changer based on the Klipper system
US $112.00(no board)/ $236.00(full)
EU 121,99€(no board)/ 256,69€(full)
https://s.click.aliexpress.com/e/_oB5p8US

High Speed Print Head Upgrade Hotend Kit For Ender 3/CR10/VORON 2.4 Hi-End Extruder J-head for Ender 3 V2 3D Fast Printing
US N/A
EU 9,82€
https://s.click.aliexpress.com/e/_oB3a6vk

For Sunlun FC01 PTFE Sleeve Replacement Filament Fusion Connector Sleeve FC-01 Specialized Sleeve Splicer Sleeve
US N/A
EU 2,29€
https://s.click.aliexpress.com/e/_oD56pHc