Epson 500 Series - Manual (Page 11)

Your ActionNote complies with the United States Environmental
Protection Agency's Energy Star Program, which promotes the
manufacture of energy-efficient printers, computers, and
monitors. Your computer's power management features place the
hard disk drive, LCD, and system in a low-power suspend mode
when these components are inactive for a specified period of time.
Note
If you use an Energy Star compliant external monitor with your
computer, it also goes into a low-power mode because it isn't
receiving video signals from your computer. (screens on
non-compliant monitors go blank, but do not enter a
low-power mode.)
Your computer's Setup program lets you select different time-out
periods for the hard disk drive, LCD, and system so you can
ensure that the power management features fit the way you work.
Optional Equipment
You can easily upgrade your computer by installing additional
memory and adding optional devices, including:
Expansion memory module (4MB)
External PS/2-compatible keyboard
Extra battery packs
Additional AC adapter
Adapter for an automobile cigarette lighter
Fax/modem (installed by dealer only).
Introduction 3