Key features:

Form Factor: Typically takes up 1U (1 rack unit) of vertical space when mounted horizontally.

Application: Used in small to medium-sized server cabinets, telecommunication rooms, or any application requiring reliable, organized power distribution for a modest number of devices.

Protection: Simple PDUs like this usually include basic electrical protection, such as an on/off switch (often illuminated) and sometimes a circuit breaker to prevent overload.