Panasonic FZ-G2 Series Operating Instructions Manual page 26

Before Turning on the Computer
Refer to the following URL for how to attach options to the Expansion bays. Confirm the part
numbers of the optional items before connection.
https://askpc.panasonic.co.jp/manual/option/w/
Expansion Bays
IMPORTANT
l If the above options are not attached, be sure to attach a dummy pack or cover before using.
26
Top Expansion Bay
Rear Expansion Bay