Fujitsu ESPRIMO Q55 Series Operating Manual page 67

Underneath the top casing cover:
The following components can be found underneath the top casing cover (see
"Removing and securing the top casing cover", Page
1
1 = Space for an optical drive or SmartCard
reader / palm sensor or second hard
disk (device dependent)
2 = Drive plate location for an optical drive
or SmartCard reader / palm sensor
or second hard disk
Fujitsu
2
66):
3
4
3 = Space for a 2.5" hard disk
4 = Space for an M.2 module
5 = Fan/lithium battery beneath fan
System expansions
5
63