CBL-SAST-0818 Supermicro 55cm Cable

High-Performance Internal OCuLink x4 Interconnect Cable for SAS/NVMe Backplane Links with the CBL-SAST-0818

The CBL-SAST-0818 is an internal Supermicro server interconnect cable engineered to provide a reliable OCuLink x4 to OCuLink x4 link between storage backplanes and host controllers. In PCIe and SAS-attached storage designs, correct internal lane routing is critical to sustaining predictable throughput, minimizing link retrains, and maintaining consistent device discovery across maintenance cycles.

Designed for modern PCIe-based NVMe architectures and SAS/NVMe hybrid storage topologies, the CBL-SAST-0818 supports a 4-lane (x4) connection using dual SFF-8611 OCuLink male connectors. This internal link is typically deployed in dense rack servers where controller placement, backplane orientation, and airflow constraints require precise cabling geometry. With a 55 cm length, the CBL-SAST-0818 helps system engineers maintain clean internal paths for serviceability while protecting signal integrity across chassis routing points, enabling stable backplane-to-HBA/RAID or backplane-to-NVMe switch interconnects.

Why Choose the CBL-SAST-0818?

The CBL-SAST-0818 is purpose-built for enterprise storage expansion inside Supermicro platforms, aligning the physical interconnect with the system’s lane mapping and backplane design. Selecting the CBL-SAST-0818 supports predictable density-to-performance outcomes by reducing integration variance, enabling repeatable deployments at scale, and simplifying spares management for high-availability environments.

Supermicro designs internal interconnects to match data centre operational requirements, prioritizing reliable fitment, consistent electrical performance, and long-term service compatibility. The CBL-SAST-0818 follows this engineering approach to support standards-aligned internal cabling within modern server storage subsystems.

Key Applications:

• Internal NVMe backplane-to-controller cabling
• SAS/NVMe hybrid storage backplane interconnects
• OCuLink x4 HBA and RAID controller integration
• Service and spare replacement for existing OCuLink x4 links

At Happyware - Server Hardware you benefit from non-binding offers tailored to enterprise rollout and spares planning for the CBL-SAST-0818, helping you standardize internal storage cabling across deployments with clear procurement alignment.