Which of the following is a characteristic of USB connectors?

USB connectors are indeed commonly used for peripheral devices, which is a fundamental aspect of their design and purpose. They serve as a versatile and standardized interface for connecting a variety of peripherals, including keyboards, mice, printers, external storage devices, and many more to computers and other host devices. The ubiquity of USB connectors makes them essential in facilitating communication and data transfer between devices.

In terms of other characteristics, USB connections allow for a true plug-and-play experience, enabling devices to be connected or disconnected without turning off the computer—this is known as hot-swapping. Additionally, USB connectors feature multiple data pins to support high-speed data transfer and various protocols, which enhances their functionality across different use cases.

The other options relate to characteristics that are not accurate for USB connectors. For instance, USB technology is based on serial communication rather than parallel, and they do support hot-swapping—which highlights the disconnect from those incorrect points.