Dell J5DC3 is a 6-inch SAS cable featuring SFF-8643 Mini-SAS HD connectors, designed for internal storage connectivity in PowerEdge T640 rack servers and compatible Dell systems. The cable supports 12 Gbps SAS throughput and hot-swappable drive bay integration, typical for connecting expanders, backplanes, or external storage arrays to server HBA cards. Part number J5DC3 is OEM Dell stock, ideal for T640 refresh, expansion, or cable replacement in data center environments. Tested and guaranteed; available via quote.