I purchased this to replace an old Analog IO board (Ebay purcahsed in 2019) that had some defects (no analog audio and non-working USER port). I had a mess of cables and converters while using the defective Analog IO with a CRT TV.
I love the simplicity the mini-din-10 (Saturn) port allows. One single cable! No DAC! No YC encoder!
I've tested the board using both composite and SCART and get better results than previously (some cores that would not sync properly with my old IO board look like they should now).