Connect three internal UltraSCSI CD/DVD or hard drives plus provides an external port for additional device. This cable has PVC coated wiring to allow maximum speed. The port is mounted on a metal slot bracket with a HPDB68 female connector. It allows you to utilize your internal SCSI controller for external drives eliminating the need to buy an additional SCSI PCI card. (Connectors: 4 HPDB68 Male Internal - 0, 24, 30, 36 Inches and 1 Female External - 54 Inches)