Will this matx fit my mid sized tower?

[alang314]

Here is my tower:
https://www.nzxt.com/products/s340-elite-matte-white

Here is my mother board:
https://www.amazon.com/gp/aw/d/B06XS53VR5/ref=ox_sc_act_image_5?smid=ATVPDKIKX0DER&psc=1

 

[CountMike]

Don't see why not, that case can take full ATX MB let alone little ones.

 

[Nigel Spike]

In your tower link, under specification, is stated that the case supports motherboard sizes: mini-ITX, MicroATX, ATX.
In your shopping site link for the motherboard, the board is described as Micro-ATX.

So yes.