Asrock B550 Phantom Gaming ITX/AX


SFF Lingo Aficionado
Jul 14, 2018
I like the new Gigabyte ITX board the most TBH.
just realised that Gigabyte board doesn't have the 19-pin front USB C header so this Asrock board takes it for me, and it has more rear USB ports than both the Asus and Gigabyte hahaha. The only wildcard now is the MSI board

Wonder if it'll fit a Black Ridge
so far it's looking good, the VRM heatsink is narrower than my X570i aorus board and there's no stupid PCH fan that clash against the 92mm fan
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SFF Guru
Jan 20, 2018
After looking it over I'm more impressed by this than I thought I would be - seems like Asrock has gone back on all of their dumb decisions from the X570 (Intel cooler mount, TB3 instead of dual m.2, overly cramped layout). This looks very nice, and might be a better fit for my custom semi-passive cooler for my HTPC than the Gigabyte. Will need to consider it. But they're using the bugged Intel 2.5GbE controller, which is a serious issue. Might necessitate an RMA down the line once Intel releases their fixed silicon, but that would be a major hassle.
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SFF Guru
Gold Supporter
Apr 6, 2016
And one amazing thing IMO is the use of the M2 22110 on the front using the CPU 4.0 lanes!!!!

Also gigabyte seems is using it, but for the rear one using the chipset lanes.

Gigabyte is also the only one using the 2.5 Lan from Realtek and not the Intel one.

Mo info instead on the MSI


Case Bender
New User
May 23, 2020
I've been waiting patiently to see what the various B550 ITX boards would bring to the table as I'm wanting to use one in an upcoming NZXT H1 build (once scan get their stock in here in the UK). So far each of them seems to do most of what I'm after but not quite nailing all of them. I definitely want a front USB C header so that's Gigabyte out, and the rather mediocre offering of rear USB ports on the Asus and ASrock are a bit of a disappointment too. Although MSI haven't yet provided full details yet of their ITX board, according to their generic B550 page "All MSI B550 motherboards support USB Front Type-C connectors that allows users to connect with the latest USB devices, as well as a perfect compatibility with MSI cases." so that sounds promising - just a question of what rear connectivity we will see I suppose. Looks like Wed May 27th is when they are doing their proper reveal of them.