Listed on official products page and video wall calculator, but no dedicated product page found on en.aoto.com. Calculator table for U-XR lists RM1.5/RM1.9/RM2.3 model names (same as RM series), suggesting copy-paste error, so pitches are not recorded.
Listed for indexing
This series appears on the vendor's site, but no official spec table was found, so there are no model figures to show. It is listed here so the catalog stays complete; nothing is estimated to fill the gap.
Sources
No model-level source URL was captured for this series. It appears in AOTO's official site catalog (vendor link on the AOTO brand page); no spec figures were published for it.