s50 lite

MB is an Asus Prime B550M-A Wifi AMD 3700X (dont think this matters?) I just plugged in a Adata Gammix S50 Lite 2Tb into the M2.1 slot and it refuses to show up in BIOS or windows (scanning it using disk partition manager shows nothing). I am currently booting from a SSD plugged into my SATA 2...