Does this motherboard require ATX or Extended ATX case?

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131374Does this motherboard require ATX or Extended ATX case?
This is a server motherboard you need a full ATX towerDoes this motherboard require ATX or Extended ATX case?
Intel has also specified a ';Mini ATX'; motherboard size, which is slightly smaller than the full-sized ATX specification. These boards use the same ATX form factor power supplies and cases. The main difference is that full ATX motherboards have a maximum size of 12';x9.6';, and Mini ATX boards have maximum dimensions of 11.2';x8.2';.





High-end models used in performance workstations or servers, that use the ';Extended ATX'; form factor, also sometimes called ';EATX';. This form factor is essentially the same as ATX, except that the board can be up to 12';x13'; in size. These boards are uncommon, and the Extended ATX form factor is likely to receive significant competition from the new WTX form factor, which was designed especially for workstations. The larger motherboard size means that special





';Extended ATX cases are generally required';





The different form factors in the ATX family are similar, and the biggest differences between motherboards of different ATX-style form factors are dimensions, and the placement of mounting holes. This means that most cases are ';downward compatible'; with the smaller ATX variants, as long as they have provided appropriate sets of places to put mounting hardware. If a case will support installation of a full-sized ATX motherboard, it may also support a Mini ATX, microATX or FlexATX board as long as the designers of the case have taken the smaller form factor variants into consideration.
That is a server board and because of the dual socket design would definitely require a large case mainly due to how wide it is.


Dimensions 12.0'; x 13.0';


Need atleast 13'; of clearance between the back side of the case and anything at the front.