Hey Logan I am currently building System Based around the Asus x99 WS motherboard but am having difficulties finding the appropiate case. Newegg, doesnt even have an option in there search bar to search for CEB Form Factor. Can you please clear up some facts as to the differences between CEB and some other forms factors like E-ATX, ATX. A few post say that ATX and CEB have the same mounting holes and other similarities. Any light you can shed on the subject would be great. Thanks
All of cases that support E-ATX support SSI CEB. CEB motherboards use the same mounting holes as ATX, but are just slightly wider.
A lot of standard ATX cases will also support CEB, but the cable management holes may become restricted.
If you compare a motherboard to this gif, it's viewed at 90°.

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You mean taller? It's taller according to that gif.
Nevermind, I'm an idiot, sorry!
Look at the comparison between matx and atx. It's at 90°.
Well, it's probably right. We're just looking at motherboards wrong.
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thanks for the info sir that makes things so much easier
Use PcPartsPicker.com . First, select the X99 SSICEB motherboard under its section, then search cases with the motherboard already selected. It will filter out non-compatible cases.