Which component is essential for connecting multiple external devices to a computer?

The choice of expansion slots as the essential component for connecting multiple external devices to a computer is accurate because these slots provide the physical interface necessary to add expansion cards, which can be used for various functions, including connecting external devices. Expansion slots allow for the installation of additional hardware such as graphics cards, sound cards, network cards, and USB expansion cards, which enhance the connectivity options of a computer system.

In contrast, while the chipset is crucial for overall communication between the processor and other components within the computer, it does not directly facilitate the connection of external devices. Internal storage is focused on storing data and does not serve the purpose of connecting additional peripherals. The power supply is essential for providing electricity to all components of the computer but does not play a role in establishing connections to external devices. Thus, expansion slots are specifically designed for this purpose, making them the correct answer.