Dell part number 04C9X1 is a backplane signal cable designed for the PowerEdge R620 2U rack server. This cable provides critical connectivity between the system motherboard and the drive backplane, enabling communication with SAS/SATA storage devices in the server's internal bay configuration. Compatible with single and dual-socket R620 configurations, the cable supports standard SAS signaling protocols and throughput rates typical of enterprise storage interconnects. The R620 accommodates up to 16 small-form-factor (2.5") or eight large-form-factor (3.5") drives depending on backplane configuration, making this cable essential for any R620 deployment utilizing internal storage. Typical use cases include general-purpose virtualization, database servers, and consolidated infrastructure in data center and colocation environments. Tested and guaranteed; available via quote.