Compare the plug shapes, voltage and frequency in San Marino and Hong Kong, and find out which adapter you need before you travel.
Adapter required
Yes — coming from San Marino, you will need a travel adapter for Hong Kong. San Marino uses Type C/Type F/Type L plugs, and Hong Kong uses Type G, so the pin shapes will not fit any wall socket.
San Marino (home)
Hong Kong (destination)
Electrical specifications in Hong Kong
Voltage
Frequency
More about plugs in Hong Kong
In Hong Kong, the standard power plug is Type G. The country runs on 230 volts at 50 Hz. That means every wall socket in Hong Kong is the same shape — Type G, and your plug needs to physically match the socket to fit.
Full Hong Kong plug guide