Hi, how can I get 5.1 audio from the Asus ROG Strix and where?Regards

Hello, I am planning to expand the memory and M2 disks of my asus scar strix g18 G834JZ rtx 4080 on the black freday, I was planning to put 64gb of RAM 5600 Mhz and a 2Tb M2 for OS and another 4TB M2 for the second unit. Can you recommend which memor...