Asus G60J - Manual (Page 17)

Notebook PC User Manual 17
Primary Hard Disk Drive Compartment
Secondary Hard Disk Drive Compartment (Optional)
The hard disk drive is secured in a compartment. Visit an
authorized service center or retailer for information on hard
disk drive upgrades for your Notebook PC. Only purchase
hard disk drives from authorized retailers of this Notebook
PC to ensure maximum compatibility and reliability.
5
The secondary hard disk drive is optional. This hard disk drive bay
may be empty or contain an optional hard disk drive depending
on your purchase.