I search about this motherboard but there was not topic so, here it is!
This motherboard should not be confused with B550 Phantom Gaming-ITX/ax
Here is the official ASRock page.
Price: 130$, according this reddit post
Noteworthy:
- Rear USB C.
- Only one 1 Hyper M.2 slot.
- SATA ports are not towards the side. Might be easier to build sff pc than the B450 and B550.
- No chipset fan.
- One PS/2 Mouse/Keyboard Port
- Bluetooth 4.2+, not Bluetooth 5.0 like the B550 Phantom ITX.
This motherboard should not be confused with B550 Phantom Gaming-ITX/ax
Here is the official ASRock page.



Price: 130$, according this reddit post
Noteworthy:
- Rear USB C.
- Only one 1 Hyper M.2 slot.
- SATA ports are not towards the side. Might be easier to build sff pc than the B450 and B550.
- No chipset fan.
- One PS/2 Mouse/Keyboard Port
- Bluetooth 4.2+, not Bluetooth 5.0 like the B550 Phantom ITX.