How many devices can a SCSI cable connect in a single chain?

A SCSI (Small Computer System Interface) cable can connect up to 16 devices in a single chain. SCSI identifies devices using a unique address, allowing for multiple devices to be connected - typically a combination of hard drives, tape drives, and other peripheral devices.

Each device in the SCSI chain is assigned a unique number, allowing them to communicate with the host controller. The SCSI standard supports a maximum of 16 devices, which includes the host controller itself as one device, leaving 15 additional devices that can be connected.

This ability to connect multiple devices effectively makes SCSI a versatile interface for both internal and external device connections, particularly in enterprise environments where multiple storage devices are required. The other options suggesting fewer devices understate the capability of the SCSI interface.