A:Answer I JUST bought this keyboard(Dec 2020). As the product specs and Q&A contained conflicting information about whether an adapter was included, I wanted to answer this question, at least for this timeframe. The keyboard DOES come with the appropriate adapter in the box. It DOES come with a stand (somewhat flimsy) to support a sheet of music. It DOES NOT come with a keyboard stand, i.e., to hold it off the ground.
The Best Buy website unfortunately has a not-so-helpful graphic that says people often bought the keyboard and the ADE95 adapter together, perhaps because we are all confused about whether it was included or not.
At any rate, like a lemming, I ordered both, but then contacted Casio tech support to ask if the ADE95 adapter was OK with this keyboard versus the ADE95100l, which is specified in the user manual. They said you definitely need the ADE95100L. He also said it should be in the box as long as I bought this product new. So I opened the box, and there it was (yes, I feel stupid, but this is a gift and I was trying to avoid opening the box!). I did not see any AA batteries, which can also run this keyboard. I hope this helps others avoid my mistake.