Compatible hub listing: Bambu-compatible AMS Hub Connection. Confirm the exact model, configuration, seller, and return terms before ordering.

Check AMS hub on Amazon

The answer in one minute

Choose neither by feature preference. Choose by printer and system layout.

What you own The relevant part Why
Bambu Lab A1 or A1 mini AMS Lite This is the supported four-spool system for the A1 platform.
X1- or P1-series printer with one full-size AMS Full-size AMS AMS Hub is not needed for one unit.
Compatible X1/P1 setup expanding to multiple full-size AMS units AMS Hub, plus the AMS units The hub routes several AMS units into one printer; it does not hold filament itself.

That distinction matters because an AMS Lite is an automatic material system, while an AMS Hub is an expansion accessory. Comparing them as two versions of the same product can lead to an unusable purchase.

View the official AMS Lite View the full-size AMS system

What AMS Lite actually does

AMS Lite feeds as many as four filament spools into an A1-series printer for automatic changes. Bambu lists support for one AMS Lite per printer, so its practical ceiling is four colors or materials in a job. It is an open-frame unit: spools remain visible and accessible, but they are not stored inside the sealed, humidity-managed body used by the full-size AMS.

This is the straightforward choice if you have an A1 or A1 mini and want automatic filament changes. Check the supported spool dimensions and filament restrictions on Bambu’s product page before ordering; flexible materials and nonstandard spools can require a different feeding approach.

What AMS Hub actually does

The hub is plumbing for a larger system. It allows compatible X1- and P1-series installations to route several full-size AMS units to one printer. Bambu states that up to four AMS units can be combined for as many as 16 filament positions.

The hub does not turn an A1 into an X1/P1 system, and it is not a cheaper way to add four-color printing. A buyer starting from zero would still need the compatible printer and at least one full-size AMS. The hub begins to earn its cost only when a single-AMS installation is being expanded.

The compatibility trap to avoid

Bambu’s two AMS families are not cross-platform accessories:

  • AMS Lite is for the A1 series and cannot be connected to X1/P1 printers.
  • The full-size AMS is for supported X1/P1 printers and is not the material system for an A1.
  • AMS Hub expands a compatible full-size AMS installation; it does not replace either material system.

If your aim is simply to keep frequently used filament ready, do not assume that more slots automatically improve printing. More routing means more tubes, connections, loaded material, and storage space. A single four-spool system is often the calmer setup unless you regularly produce high-color work.

Which setup fits a small workspace?

AMS Lite is visually open and needs a usable footprint beside or above the printer. A multi-AMS system can move filament storage away from the printer, but several AMS boxes and their routing still require substantial space. Measure the complete operating area, not just the accessory body, and leave access for spool changes and tube service.

For an A1-family buyer, our A1 versus P1P/P1S decision guide explains when the printer platform itself should change. If moisture control is the real problem, start with our filament-dryer buying guide ; neither an open AMS Lite nor extra routing fixes wet filament.

Bottom line

Buy AMS Lite for an A1 or A1 mini. Buy an AMS Hub only when an already-compatible X1/P1 installation is growing beyond one full-size AMS. If the printer family and expansion plan are not known, pause the purchase: compatibility is the decision, not a minor specification.

Sources