Three cranks, aligned at the spindle. The RaceFace Aeffect and Aeffect R are obviously just the longer 175mm or 180mm castings drilled differently. However, https://www.pinkbike.com/news/race-face-launches-aeffect-r-cranks-dropper-post-and-lever.html#cid2342377 (which seems to be an official RF account) claimed the Rs would not have this extra.