ASUS PRIME B450M-A/CSM AM4 AMD B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD Motherboard | Question

[talksalot73]

Hi,

I'm considering purchasing this Asus B450 Motherboard but I wondered about a certain connector. On the board above the m.2 slot is the BIOS chip, directly to the left of that chip is a 9 pin connector, does anyone know what that connector is? There is nothing mentioned about it in the manual. Thank You in advance.