What type of connector is a legacy parallel bus connector that allows multiple devices to be daisy-chained together?

The Small Computer System Interface (SCSI) is a legacy parallel bus connector known for its ability to connect multiple devices in a daisy chain configuration. This distinctive feature allows various devices, such as hard drives, scanners, and printers, to be connected to a single interface, efficiently sharing the bus architecture. SCSI supports a wide range of devices and provides a flexible approach to device management and data transfer, making it a hallmark in environments where multiple peripherals need to operate in conjunction.

While USB is a more modern and popular interface for connecting devices, it does not natively support daisy chaining in the way SCSI does. SATA (Serial ATA) is primarily used for connecting storage devices like hard drives and SSDs, but it operates through point-to-point connections rather than allowing multiple devices to be daisy-chained. IDE (Integrated Drive Electronics) is an older drive interface for hard drives and optical drives, but it lacks the daisy-chaining capability inherent in SCSI's design. Thus, SCSI stands out as the correct answer due to its parallel bus architecture and multipoint connectivity feature.