CBL-SAST-0591 Supermicro 75cm Cable

Internal MiniSAS HD to 4x SATA Forward Breakout Cable Assembly with the CBL-SAST-0591

The CBL-SAST-0591 is an internal storage cable assembly engineered to connect a 4-lane MiniSAS HD (SFF-8643) host interface on a SAS/SATA HBA or RAID controller to 4 independent SATA device channels. In modern server platforms where PCIe resources are reserved for accelerators and high-bandwidth I/O, this breakout approach keeps the storage topology simple and serviceable while preserving controller-driven manageability.

By mapping one x4 MiniSAS HD link to four discrete SATA ports, the CBL-SAST-0591 supports direct wiring to 2.5" or 3.5" SATA bays and SATA-capable backplanes without adding intermediary expanders. Sideband support enables platform-level enclosure and drive-management signaling where implemented, improving operational visibility during build-out and maintenance. The halogen-free, RoHS and REACH-compliant construction aligns with data centre material requirements, and the standardized 0.75 m harness length with 4 equal legs supports consistent routing and repeatable chassis builds.

Why Choose the CBL-SAST-0591?

The CBL-SAST-0591 delivers a predictable, controller-to-drive fan-out design that optimizes density-to-serviceability in storage-dense chassis. It reduces wiring variability across rack deployments, supports scalable bay population strategies, and helps maintain signal integrity and physical organization when expanding SATA capacity from a single MiniSAS HD port.

Supermicro designs cabling and platform interconnects to match enterprise server mechanical constraints, airflow considerations, and field-service workflows. The result is reliable internal connectivity that aligns with modern data centre standards for compliance, repeatability, and long-term maintainability.

Key Applications:

• SATA drive bay integration in rack servers
• SAS/SATA HBA to SATA backplane fan-out
• Storage expansion in GPU and HPC nodes
• Standardized harnessing for system builds

At Happyware - Server Hardware you benefit from 24/7 Customer Service to support urgent integration questions around the CBL-SAST-0591, and you can register for Non-Binding Offers to align multi-system rollouts and spares planning with your deployment requirements.