Connects one internal SCSI CD/DVD or hard drive 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 HPDB50 female connector. It allows you to utilize your internal SCSI controller for external drives eliminating the need to buy an additional SCSI PCI card. This cable can also be used for HSSI applications. (Connectors: 2 HPDB50 Male Internal - 0, 24 Inches and 1 Female External Clip-Type - 42 Inches)