That is a Micro ATX motherboard:
https://www.asus.com/us/Motherboards/M5A78L-M-PLUS-USB3/specifications/
And that case apparently can house ATX, Micro ATX and Mini ITX with standard ATX PSU:
https://www.cclonline.com/product/219885/PRISM-WHITE-RGB/Cases/CiT-Prism-Mid-Tower-Case-White-with-2-x-RGB-Front-Fans-Side-Window/CAS2822/
https://www.amazon.co.uk/CiT-Gaming-RGB-Window-Control/dp/B01MZZIYJD?th=1