On the official website of Antec I found the following dimensions:
48.77cm (H) x 26.16cm (W) x 53.59cm (D)
My case is 42.4cm (H) x 18.2cm (W) x 47.8cm (D) and the side panel can't close properly anymore.
Comparing your case to mine, 26.16 vs 18.2 I can assure you that it will fit in your case.
About your motherboard:
I don't know why it wouldn't be able to fit on that motherboard. You don't have any big/high heatsinks from the chipset so I think it won't be a problem. It looks like any other regular Gigabyte motherboard, it also looks like mine which fits perfectly.
Case: will fit, Motherboard: will most likely also fit.
|