The item in the image is a three-outlet
Electrical Plug Surge Protector, also known
as a surge suppressor or surge diverter.
It is to duplicate plus of one to three,also
used to protect electronic devices from
voltage spikes or power surges.
Helpful information:
It diverts excess voltage to the ground
wire, preventing damage to connected
equipment.
It protects against short-term, high-intensity
voltage spikes.
It is recommended to use for expensive
electronics with microprocessors like TVs,
computers, and gaming systems.
Some models offer energy-saving features.
It is different froma power strip, which is
just an extension cord.
It will enter in one inlet and extend out three
plugs. Basically used for flat plugs unless
you have a converter.
It can help prevent electrical fires.
It is useful during lightning strikes.