Voltage: Mexico uses 127V, 60Hz electrical system, similar to United States and Canada but different from most of Europe (220-240V).
Plug Types: Type A and Type B outlets are standard. Type A has two flat parallel pins, Type B adds grounding pin. Same as used in US/Canada.
US/Canada Travelers: No adapter needed - your plugs fit directly. Your devices will work normally.
European/UK/Asian Travelers: Adapter required for your plug types. Additionally, check device voltage compatibility (most modern electronics 100-240V work fine).
Voltage Converters: Only needed for devices rated exclusively for 220-240V (rare nowadays). Most phone chargers, laptops, cameras, and tablets are dual voltage (check label). Hair dryers and curling irons may require converter unless dual voltage.
Purchase adapters at airport electronics shops, Walmart, or Chedraui supermarkets in Cancun. Better prices than hotel gift shops. Amazon or home country electronics stores offer cheapest options before travel.
Most modern hotels provide USB ports in rooms. USB charging works universally regardless of country. Bring USB cables for phones and tablets. Power banks useful for day trips and beach days.