The Dell F2389 is a SCSI riser-to-rear-wall cable assembly designed for PowerEdge 2850 servers. This cable connects the SCSI backplane riser card to rear-mounted SCSI controllers and storage devices, enabling high-speed data transfer between internal storage subsystems and the server's I/O infrastructure. Compatible exclusively with PowerEdge 2850 dual-socket Xeon systems, the F2389 supports standard SCSI protocol connectivity for legacy SAS or Ultra320 SCSI configurations common in early-2000s enterprise deployments. Typical applications include 2U rackmount server builds requiring internal disk arrays or tape backup connectivity. The refurbished unit has been tested and is guaranteed for reliability; available via quote.