Toshiba Satellite C640 - Manual (Page 65)

User’s Manual 3-20
Hardware, Utilities and Options
Removing the memory module
7. Seat the cover and secure it with one screw.
Additional Battery Pack (3 Cell and 6 Cell)
You can increase the portability of the computer with additional battery
packs. If you’re away from an AC power source, you can replace a low
battery with a fully charged one. See Chapter 6, Power and Power-up
Modes .
Additional AC Adaptor
If you frequently transport the computer between different sites such as
your home and office, purchasing an AC adaptor for each location will
reduce the weight and bulk of your carrying load.
USB FDD Kit
The external FDD drive module can be connected to the USB port.
External Monitor
An external analog monitor can be connected to the external monitor port
on the computer.To connect a monitor, follow the steps as detailed below: