SFF-8643 8i plug/SFF-8644 4x * 2 plug

Description

Mini SAS HD 8i to Dual 4x Internal Cable Assembly – High-Speed Fanout for SAS 24G and PCIe Gen 4.0 Infrastructure

The Mini SAS HD 8i to Dual 4x internal cable assembly, featuring one SFF-8643 8i plug and two SFF-8644 4x plugs, is a high-performance fanout solution designed to split an 8-lane internal SAS or PCIe interface into two external 4-lane channels. Engineered for SAS 6G/12G/24G and PCIe Gen 4.0 signaling, this cable supports high-bandwidth data transmission and flexible system integration in enterprise storage and compute environments.

⚙️ Key Features

• Connector Configuration:
  • Mini SAS HD 8i plug (SFF-8643) to 2 × Mini SAS HD 4x plugs (SFF-8644)
  • Enables bifurcation from a single internal 8-lane port to dual external 4-lane interfaces
• Protocol Compatibility:
  • Fully supports SAS 6Gbps, 12Gbps, and 24Gbps per lane
  • Compatible with PCIe Gen 4.0 signaling for NVMe and hybrid storage systems
• Signal Integrity:
  • Differential impedance: 100 ohm / 85 ohm
  • Optimized for low insertion loss and minimal crosstalk across all signal pairs
• Wire Gauge Options:
  • Available in 30AWG to 28AWG, balancing flexibility, durability, and high-speed performance
• Mechanical Design:
  • Compact, high-density connectors with secure latching and molded strain relief
  • Ideal for internal-to-external routing in rack-mounted systems and enclosures
• RoHS Compliant:
  • Manufactured in accordance with global environmental and safety standards

🧩 Applications

• Enterprise Storage Systems: Connects SAS 24G RAID or HBA cards to external JBODs, expanders, or drive enclosures
• Data Centers: Enables high-speed internal-to-external links in servers and storage platforms with scalable drive configurations
• High-Performance Computing (HPC): Supports low-latency, high-bandwidth connectivity between compute nodes and external storage fabrics
• OEM & ODM Integration: Ideal for custom server and storage builds requiring bifurcated SAS or PCIe routing across internal and external interfaces
• Hybrid Deployments: Facilitates flexible architecture designs using shared cabling infrastructure for SAS and PCIe applications