SFF-8642 plug / SFF-8436 plug*3

Description

SFF-8642 plug / SFF-8436 plug*3+ External Cable Assembly – High-Density InfiniBand 12x Fanout for 40G Connectivity

The SFF-8642 plug / SFF-8436 plug*3 external cable assembly is a high-performance breakout solution designed to split a single InfiniBand 12x CXP port into three independent QSFP+ 4x ports. Engineered for precision impedance control and optimized signal integrity, this cable supports high-speed data transmission in InfiniBand, Ethernet, and HPC environments.

⚙️ Key Features

• Connector Configuration:
  • SFF-8642 plug (CXP 12x) to 3 × SFF-8436 plugs (QSFP+ 4x)
  • Enables fanout from a 120Gbps CXP interface to three 40Gbps QSFP+ channels
• Signal Integrity:
  • Supports up to 120Gbps aggregate bandwidth
  • Optimized for InfiniBand, 40G Ethernet, and Fibre Channel applications
  • Maintains 100-ohm differential impedance for stable high-speed performance
• Wire Gauge Options:
  • Available in 32AWG to 24AWG, balancing flexibility, durability, and low insertion loss
• Robust Shielding:
  • Provides excellent EMI/RFI protection for reliable operation in dense rack environments
• Hot-Pluggable Design:
  • Facilitates easy deployment and replacement in live systems
• RoHS Compliant:
  • Manufactured in accordance with global environmental and safety standards

🧩 Applications

• High-Performance Computing (HPC): Connects CXP-enabled switches or host adapters to multiple QSFP+ nodes for parallel processing
• Data Centers: Enables scalable bandwidth distribution across spine-leaf architectures and storage fabrics
• InfiniBand Networks: Supports 12x to 4x fanout for efficient topology design and bandwidth optimization
• Enterprise Networking: Facilitates hybrid interconnects between legacy CXP infrastructure and modern QSFP+ devices
• OEM & ODM Integration: Ideal for custom system builds requiring multi-port breakout and high-speed signal integrity