Small Computer System Interface (SCSI) cables transmit data between computers and different SCSI devices through a computer bus. They are made of several conductor wires forming a flat ribbon cable, device connectors, and sometimes a terminator. They are mostly used for hard disks and other storage devices, but they also work with printers, scanners, and most types of computer hardware.
Types of SCSI Cables
Kinds of SCSI Cables include the following:
Internal SCSI cables
Internal SCSI cables are used for internal devices such as hard disks, CD drives, and floppy drives.
They have less rugged shielding and are usually thinner, because the computer case provides much of the protection.
Some cables use fully parallel wiring, while others combine parallel and twisted wires in one cable.
External SCSI cables
External cables are used for devices residing outside the computer and having their own power supply.
They are covered with a metallic shield to protect them from noise, interference, and outside damage.
The wires are arranged into twisted pairs to improve signal integrity.
Choosing SCSI Cables (Buying tips)
Wire structure: Choose an SCSI cable with twisted-pair wiring to reduce interference from external sources or other devices inside the computer case. Make sure it is properly shielded with copper foil or aluminum. Width: Choose a 50-wire SCSI cable for floppy drives and small external storage devices. For large hard disks requiring a high transfer rate, choose a 68-wire cable.
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