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The IB stands for iBuyPower. You can use the Z370 Pro4 drivers and downloads. The only one not available right now is an update for the BIOS, which you will not need at this time until a fix for the Spectre bug is released.
Sorry, there was a problem. Please try again later.It is a MicroATX form mother board made for IBP, hence the "-IB." It is a smaller and stripped down version of the full-sized ASRock Z370 PRO4 mobo. It is missing an M.2 slot and a couple of other 'features' that are on the full sized mobo. Personally, I didn't like the fact that this big case had such a small mother board in it. I also needed one of the features that was removed. Luckily for me, there was a problem with the computer and I had to exchange it. The replacement has a full size ASRock Z370 PRO4.
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