interface consisting of a standard port between a computer and its peripherals that is used in some computers
"The server relies on an SCSI interface to connect its hard drives, allowing it to access storage more efficiently than through other ports."
Initialism of Small Computer Systems Interface.
"The technician connected the external hard drive using a SCSI cable to ensure compatibility with the legacy server's Small Computer Systems Interface."
In plain English: SCSI is an older type of cable that lets computers connect to hard drives and other storage devices quickly.
"The technician replaced the faulty SCSI drive to fix the server's boot issue."