Kato Power Pack Standard SX

The Power Pack Standard SX is a general power supply for model
train operation with an adjustable DC output for track power and fixed
DC12V for turnout and lighting control. The included AC Adapter is
intended for basic model train operation only, but can be replaced with
more powerful optional Power Supplies for situations where more power
is needed, such as for operating the Kato Sound Box or long HO consists.

Features:
• Works with both HO and N track.
• Comes with a 1.5A A/C Wall Adapter suitable for
  either N or HO scale.
• Upgradeable with alternative power supplies
  (sold separately) that can provide additional power.
• US Style Plug only – please do not purchase this power
  supply if you are outside of the United States.