Travel adapter from Cuba to Eswatini
Adapter Required
Yes — coming from Cuba, you will need a travel adapter for Eswatini. Cuba uses Type A/Type B plugs, and Eswatini uses Type C/Type M/Type N, so the pin shapes will not fit any wall socket. Voltages differ (120 V at home vs 230 V abroad), so check the label on each device. Most modern dual-voltage chargers handle the swing without a converter, but heating appliances usually do not. The mains frequency is also different (60 Hz vs 50 Hz). This rarely matters for electronics but can affect motor-driven devices like clocks and shavers.
Cuba (home)
Eswatini (destination)
Electrical specs
More about plugs in Eswatini
In Eswatini, the standard power plug is Type C and Type M and Type N. The country runs on 230 volts at 50 Hz. That means wall sockets in Eswatini can be one of 3 different shapes — Type C, Type M, Type N, and your plug needs to physically match the socket to fit.