PCIe 4.0 x4 Male to x1 Female Up R/A Extension Cable, 85-ohm Low Impedance

The PCIe 4.0 x4 Male to x1 Female Up R/A Extension Cable, 85-ohm Low Impedance, is a high-performance passive adapter solution engineered for next-generation computing systems, data centers, and space-constrained environments requiring precise impedance matching and optimized cable routing. This cable adapts a PCIe 4.0 x4 slot interface to a PCIe x1 interface while maintaining a consistent 85-ohm differential impedance and featuring an Up Right-Angle (Up R/A) female connector for vertical clearance optimization. Supporting data rates up to 16.0 GT/s, this solution ensures optimal signal integrity in high-speed applications while providing flexible cable management in dense configurations. The combination of impedance control and right-angle design makes it ideal for high-density servers, test benches, and systems requiring strict compliance with PCI-SIG standards for PCIe 4.0 implementations.

Features

• 85-Ohm Impedance Matching: Precisely engineered to maintain 85-ohm differential impedance across the entire cable assembly, reducing signal reflections and ensuring compliance with PCIe 4.0 specifications for improved signal integrity at 16.0 GT/s.
• Up Right-Angle Connector Optimization: The Up R/A female connector directs the cable upward relative to the motherboard plane, providing optimal clearance in cramped enclosures and preventing interference with adjacent components.
• PCIe 4.0 Compliance: Supports PCIe 4.0 specifications with a data transfer rate of 16.0 GT/s per lane, providing a bandwidth of approximately 2 GB/s for x1 configurations while maintaining backward compatibility with PCIe 3.0/2.0/1.0 devices.
• Enhanced Signal Integrity: Utilizes low-loss twin-axial cables with multi-layer shielding (foil and braid) to minimize insertion loss, crosstalk, and electromagnetic interference (EMI), ensuring stable performance in electrically noisy environments.
• Form Factor Adaptation: Enables physical and electrical compatibility between PCIe x4 and x1 interfaces, allowing x1 devices to be installed in x4 slots with optimized space utilization and signal preservation.
• Durable Construction: Incorporates gold-plated contacts (min. 0.76µm thickness) and reinforced connector housings with strain relief to withstand mechanical stress in commercial environments.

Specifications

• Product Model: PCIe 4.0 x4 Male to x1 Female Up R/A Extension Cable, 85-ohm Low Impedance
• Connector A: PCIe 4.0 x4, Male, Edge Connector
• Connector B: PCIe 4.0 x1, Female, Up Right-Angle (Up R/A)
• Connector Gender: Male to Female
• Cable Type: Passive Copper Extension Cable
• Pinout Configuration: Standard PCIe-compliant with x4 to x1 lane mapping
• Cable Length: Standard options: 0.25m, 0.5m (Custom lengths up to 1.0m available)
• Data Rate Support: Up to 16.0 GT/s (PCIe 4.0)
• Supported Protocols: PCI Express 4.0/3.0/2.0/1.0
• Impedance: 85 ohms (differential, compliant with PCIe 4.0 standards)
• Wire Gauge: 31 AWG (high-precision copper)
• Shielding: Foil and braid shielding for EMI protection
• Operating Temperature: 0°C to +70°C (commercial grade)
• Durability: Minimum 500 insertion cycles
• Safety Standards: RoHS compliant

Applications

• High-Density Data Centers: Deploying in rack-mounted servers where PCIe 4.0 extensions are required for add-on cards, with the 85-ohm impedance ensuring minimal signal loss and the Up R/A design optimizing cable routing in cramped spaces.
• Test and Development Benches: Facilitating hardware debugging and signal integrity validation where precise impedance matching is critical for accurate measurements in crowded setups.
• Enterprise Storage Systems: Supporting enterprise-grade equipment requiring compliance with PCIe 4.0 specifications for reliable performance in business-critical applications.
• Gaming and Workstation Customization: Enabling flexible component placement in custom builds where motherboard slots are obstructed by large GPUs or cooling solutions.