Question about Erazer Bandit P20

The manufacturer specifies the following:
Mainboard: B760

1 x PCIe x16, of which 1 x occupied
RAM slots: 2 x, of which 2 x occupied
Max. supported RAM memory: 128 GB
3 x SATA ports, of which 0 x occupied
2 x M.2, of which 1 x occupied
1GbE LAN chip (1 Gbps)
5.1 channel high-definition audio