For all intents and purposes, it is a slightly taller fan duct for the A4 SFX with a Noctua L9i heatsink and a Noctua A9x14 fan. My setup uses an ASRock Z270 Fata1ity ITX.
It is 12mm, instead of the provided 10mm design.
It also has slightly taller screw mount holes (9mm), since the provided...