• "Model No"
  Indicates the model name or model number. "I/P" below it stands for Input.
• "I/P AC100~240V"
  Indicates that it supports an input voltage of AC100V~240V. Standard outlets in Japanese homes and offices supply 100V. Overseas, electricity is generally supplied within the ranges of 110V~130V or 220V~240V. Therefore, if AC100V~240V is indicated, the adapter can be used globally, including in Japan.
• "50/60Hz"
  Indicates the dual rated frequency. In Japan, there are two frequencies: eastern Japan uses 50Hz, and western Japan uses 60Hz.
• "0.4A"
  Indicates the maximum AC input current value.

• "O/P"
  Means Output.
• "O/P:DC5.9V 2.0A"
  Indicates the rated output of DC5.9V 2.0A.
• "11.8W"
  Indicates the wattage.

• "L.P.S"
  Means Limited Power Source. LPS is an abbreviation for Limited Power Source and refers to a power supply with restrictions on maximum output voltage, output current, and rated power. It is defined in IEC60950.

• Crossed-out wheeled bin symbol
  This symbol, showing a crossed-out trash bin, is called the crossed-out wheeled bin symbol based on the WEEE Directive announced by the EU around 2003. It aims to promote the recycling of Products and indicates that the Products should be recycled rather than disposed of in landfill.

• Safety certification marks
  Safety certification marks such as PSE, CE, and UL are shown. There is a page that explains safety standards in detail, so please refer to the relevant page if you would like more information.

• "I.T.E. POWER SUPPLY"
  The indication "I.T.E. POWER SUPPLY" shown near the UL mark means that the power supply complies with IEC/EN60950 and is intended to supply power to information technology equipment.
  For power supplies compliant with IEC/EN62368 for audio, video, information, and communication technology equipment, it is labeled "AUDIO/VIDEO AND I.T.E POWER SUPPLY."
  For IEC-60601 medical equipment, it is labeled "MEDICAL EQUIPMENT."

• House symbol
  The house-shaped silhouette symbol means "For indoor use only." Some versions show an arrow overlapping the house symbol.

• Double insulation
  This symbol indicates double insulation, meaning both basic insulation and supplementary insulation measures, or reinforced insulation measures, are provided. (IEC safety class II)

This symbol indicates the polarity of the DC plug. In this case, it means the outer diameter of the DC plug is negative and the inner diameter is positive. This is called center positive.

For center negative, it is indicated as follows.

Incidentally, according to JEITA standards, the polarity indication for plugs that fall under EAIJ is shown in a diamond shape, while others are shown in a circular shape.