the TRS-A/TRS-B is unfortunately an issue caused by history…and been an issue for quite a while.
the only technical difference is which connection is on tip and which ring, in fact you can just cut the cable and reverse them and it will work. (or make/buy? some kind crossover cable)
TRS-A (as used by the Organelle-m) came first and was used by a few manufactures.
unfortunately Novation and Arturia decided to use do it the other way (TRS-B) , and they became very popular with users.
so why does the Organelle-M not use TRS-B if its more popular?
because the MIDI manufactures association (MMA) decided to make TRS-A the standard,
this means over time, you can expect everybody to switch over to the TRS-A.
its a pain (*) … but there it is
if i was a novation/arturia user , what i would do is buy a simple 3.5mm TRS-TRS audio cable, cut one end of and put a new stereo jack on the end , with the tip and ring reversed - then you have a nice simple lightweight cable… rather than having to use 2 sets of DIN adapters and a fat midi din cable
or use usb… which is what i tend to use anyway
(*) especially, as ive noticed quite a few online stores that just say TRS->MIDI , not specifying type… if your lucky they list novation as an example device so you know its TRS-B, but not always!