CBL-SAST-0816 Supermicro 28cm Cable

High-Performance Internal PCIe/NVMe Storage Interconnect Harness with the CBL-SAST-0816

CBL-SAST-0816 is a Supermicro internal SlimSAS-to-OCuLink harness designed to preserve PCIe signal integrity when routing NVMe connectivity from a host SlimSAS x8 interface to two OCuLink SFF-8611 x4 device endpoints. In modern server architectures where CPU-attached PCIe lanes are allocated across backplanes and storage risers, this cable provides a deterministic x8 lane mapping split into dual x4 links for predictable device enumeration and consistent bandwidth per NVMe drive bay.

By aligning the physical topology with PCIe Gen4/Gen5-ready chassis designs, CBL-SAST-0816 supports dense storage expansion without consuming additional PCIe slots or introducing external cabling complexity. The 28 cm internal length is optimized for controlled routing within Supermicro platforms, minimizing excess slack that can obstruct airflow paths or complicate serviceability while maintaining clean separation between host and device domains on NVMe backplanes.

Why Choose the CBL-SAST-0816?

CBL-SAST-0816 is purpose-built for enterprise integration scenarios where storage performance depends on accurate lane bifurcation and reliable internal interconnects. It enables high density-to-performance by delivering two x4 NVMe device links from a single x8 SlimSAS host, supports repeatable builds across scale-out deployments, and simplifies upgrades or field replacement without re-architecting the PCIe topology of the server.

Supermicro engineers cabling and chassis ecosystems as a unified platform, emphasizing validated connector compatibility, predictable mechanical fit, and alignment with data centre service standards. This approach reduces integration risk for NVMe backplanes, risers, and storage-centric server configurations.

Key Applications:

• NVMe backplane interconnect in rack servers
• PCIe storage riser to drive bay routing
• OEM system integration and standardized builds
• Service replacement for internal PCIe cabling

At Happyware - Server Hardware you benefit from non-binding offers tailored to PCIe/NVMe storage projects using CBL-SAST-0816, and our 24/7 customer service supports fast clarification on compatibility, lane mapping, and deployment quantities for large-scale rollouts.