PCIe 4.0 x8 Male to x4 Female Extension Cable, 85-ohm Low Impedance

The PCIe 4.0 x8 Male to x4 Female Extension Cable is a high-performance interconnect solution designed for expanding and adapting PCI Express connectivity in modern computing environments. This cable provides a reliable electrical pathway from a motherboard's PCIe 4.0 x8 slot to a x4 peripheral device interface, enabling flexible system configurations. Engineered with 85-ohm low impedance characteristics, this extension cable maintains PCIe 4.0 signal integrity while offering versatile compatibility options for various high-speed devices in enterprise, data center, and high-performance computing applications.

Features

• Asymmetric Lane Configuration: Bridges PCIe 4.0 x8 host interface to x4 device interface, providing flexible connectivity options for various expansion cards
• Full PCIe 4.0 Performance: Supports data rates up to 16 GT/s per lane, delivering maximum available bandwidth for connected devices 
• Precision 85-ohm Impedance: Low impedance matching ensures minimal signal reflection and maximum signal integrity at high data rates, ideal for PCIe applications 
• Enhanced Signal Integrity: Multi-layer shielding construction provides excellent protection against electromagnetic interference and ensures high bandwidth, resonance-free signal integrity performance 
• Secure Connection System: Robust connectors with reliable mating mechanisms ensure stable operation in various orientations
• Space-Optimized Design: Flexible cable construction allows for easy routing in dense server configurations 
• Universal Compatibility: Supports connection between x8 host interfaces and x4 peripheral devices across various computing platforms

Specifications

• Host Connector: PCI Express 4.0 x8 Male
• Target Connector: PCIe x4 Female
• Supported Standard: PCI-SIG PCIe 4.0 Base Specification
• Data Rate: 16.0 GT/s per lane (PCIe 4.0) 
• Total Bandwidth: 64 Gbps (x4 lanes effective)
• Characteristic Impedance: 85? ±5% 
• Cable Type: Shielded twisted pair or twin axial cable with overall braid protection 
• Cable Construction: Low-loss, flexible design 
• Cable Length: 250mm, 300mm, 500mm standard options 
• Operating Temperature: 0°C to +70°C
• Storage Temperature: -40°C to +85°C
• Durability Rating: 10,000 mating cycles
• Contact Material: Gold-plated contacts for optimal conductivity

Applications

• Data Center Infrastructure: Ideal for hyperscale environments requiring flexible PCIe connectivity between different lane configurations 
• Server Storage Expansion: Enables connection of x4 storage controllers and adapter cards to x8 motherboard slots in rack-mounted servers 
• High-Performance Computing: Supports computational workloads requiring flexible component placement and maintenance of PCIe 4.0 performance
• Test and Development Laboratories: Essential for validation environments requiring asymmetric lane configurations and signal integrity testing 
• Industrial Computing Systems: Suitable for industrial automation equipment requiring reliable PCIe extension in controlled environments
• Network Appliance Integration: Facilitates addition of network interface cards and security processors in networking equipment
• Embedded Solutions: Provides expansion capabilities for compact embedded systems requiring x4 connectivity
• Custom Computing Projects: Enables unique system configurations for enthusiasts and system integrators dealing with specific lane configuration requirements