Internal HD Mini SAS SFF-8643 8i to 2 OCulink SFF-8611 4i Breakout Cable

The Internal HD Mini SAS SFF-8643 8i to 2 OCuLink SFF-8611 4i Breakout Cable is a high-performance interconnect solution designed for efficient internal storage expansion in server and data center environments. This cable converts a single HD Mini SAS 8i (SFF-8643) host port into two independent OCuLink SFF-8611 4i interfaces, effectively doubling the storage connectivity capacity. Engineered for reliability and signal integrity, it enables seamless integration of multiple high-speed NVMe drives through a single host connection, making it ideal for applications requiring scalable storage bandwidth without additional host controller hardware.

Features

• High-Density Breakout Design: Single SFF-8643 connector splits into two OCuLink SFF-8611 4i interfaces for optimized port utilization
• High-Speed Performance: Supports PCIe 4.0 data rates up to 16 GT/s per lane across all interfaces
• Dual Protocol Support: Compatible with both NVMe PCIe and SATA protocols for flexible storage configurations
• Enhanced Signal Integrity: Precision-engineered with impedance-matched differential pairs and multi-layer shielding
• Secure Connection: Robust connectors with latching mechanisms ensure vibration-resistant and reliable mating
• Server-Optimized Form Factor: Designed for internal routing in 1U/2U servers and storage enclosures
• Efficient Cooling: Low-profile design facilitates improved airflow in high-density systems
• Durability: High-quality materials and construction ensure long-term reliability in continuous operation

Specifications

• Product Model: Internal HD Mini SAS SFF-8643 8i to 2 OCuLink SFF-8611 4i Breakout Cable
• Host Connector: HD Mini SAS SFF-8643, 8i, Male
• Device Connectors: 2x OCuLink SFF-8611 4i, Male
• Data Rate Support: Up to 16 GT/s per lane (PCIe 4.0 compliant)
• Supported Protocols: PCIe 4.0/3.0, NVMe 1.4/1.3, SATA 3.2
• Cable Type: Shielded twisted pair (STP) construction
• Impedance: 85? ±10% (OCuLink), 100? ±10% (Mini SAS)
• Shielding: Individual pair shielding with overall braid protection
• Wire Gauge: 30 AWG (data signals)
• Cable Length: 0.5m, 1.0m (standard options)
• Operating Temperature: -20°C to +85°C
• Mating Cycles: 5,000 cycles (all connectors)
• Minimum Bend Radius: 30mm

Applications

• Server Storage Expansion: Ideal for adding multiple NVMe drives to servers with available HD Mini SAS ports
• Data Center Infrastructure: Enables high-density storage configurations in space-constrained environments
• Storage Arrays: Connects PCIe host systems to multiple OCuLink-based storage devices
• System Integration: Essential for OEMs building customized storage solutions with optimized connectivity
• Cloud and Hyperscale Computing: Supports scalable storage architectures in large-scale deployments
• High-Performance Computing: Provides efficient storage connectivity for compute-intensive applications
• Test and Development Labs: Flexible solution for prototyping and testing multiple storage configurations
• Storage Upgrade Projects: Modernizes existing systems with Mini SAS ports by adding OCuLink NVMe capability