"Adding additional drives to your SCSI chain is a snap with our Internal 50-pin SCSI Ribbon Cable that offers you full functionality and constructed from high quality wire for true SCSI impedance meeting or exceeding applicable industry standards. Use this cable for a solid connection between your internal SCSI-1/SCSI-2 devices and your SCSI host controller. Connectors: 50-pin IDS Female to 50-pin IDS Female; one for the SCSI controller card, and one for a SCSI device. Devices Supported: 1. Cable Type: SCSI-1/SCSI-2. Connector Spacing: 0-18in. Ideal for internal hard drives, cd-rom/cd-rw drives, removable storage devices, and other SCSI-1/SCSI-2 peripherals. Due to the fact this item is a closeout we cannot accept returns."