https://ca.pcpartpicker.com/product/xzgzK8/fractal-design-design-define-r6-usb-c-tg-atx-mid-tower-case-fd-ca-def-r6c-wt-tgc
It's not fully white though, the R5 have a fully white variant
https://www.asrock.com/MB/Intel/Z370 Pro4/index.asp#CPU
The cpu is compatible with the motherboard
https://www.asrock.com/MB/Intel/Z370 Pro4/index.asp#BIOS
update the bios but u will need 8th gen cpu though