ASUS Prime Z390-P
LGA 1151, Intel Z390, ATX
Question about ASUS Prime Z390-P
Can all 4 ram slots be used at the same time? Would then install them: https://www.digitec.ch/de/s1/product/corsair-vengeance-lpx-2x-8gb-ddr4-3600-dimm-288-ram-11388259
Yes, you can use all 4 RAM slots at the same time (why else would four slots be installed?).
You may not be able to use the 3600 MHz, depending on your CPU.