IBM part number 00FK841 is a 770mm SAS cable designed for internal HDD connectivity in the System x3650 M5 1U rack server. Supports 12Gb/s SAS bandwidth with standard SFF-8087 connectors, enabling reliable high-speed data transfer between the mother board and up to four 3.5" or 2.5" hot-swap drive bays. Compatible with x3650 M5 configurations running single or dual Intel Xeon E5 v3/v4 processors. Typical applications include virtualization hosts, database servers, and general enterprise compute workloads requiring direct-attached storage. Tested and guaranteed; available via quote.