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

The PCIe 4.0 x1 to x1 Extension Cable, Male Down R/A to Female Up R/A, 85-ohm Low Impedance is a high-performance passive extension cable designed for next-generation computing systems, data centers, and space-constrained environments requiring precise impedance matching. This cable extends a PCIe 4.0 x1 interface using a down right-angle (Down R/A) male connector on one end and an up right-angle (Up R/A) female connector on the other, with a precise 85-ohm differential impedance to ensure optimal signal integrity at data rates up to 16.0 GT/s. Engineered with low-loss materials and robust shielding, this solution is ideal for applications where impedance continuity is critical, such as high-density servers, test benches, or systems requiring strict compliance with PCI-SIG standards for PCIe 4.0 implementations. The hybrid right-angle orientation facilitates efficient cable routing around obstacles, reducing bending stress and minimizing obstruction in dense systems.

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 in high-speed applications.
• Hybrid Right-Angle Orientation: Combines a down right-angle (Down R/A) male connector for low-profile motherboard insertion and an up right-angle (Up R/A) female connector to accommodate vertical clearance needs, enabling flexible cable routing around obstacles in cramped spaces and improving airflow in high-density setups.
• 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 ~1.969 GB/s for x1 configurations while ensuring backward compatibility with PCIe 3.0/2.0/1.0 devices.
• Enhanced Signal Integrity: Utilizes low-loss twin-axial cables (e.g., 31 AWG, as referenced in 3M's designs) with multi-layer shielding (foil and braid) to minimize insertion loss, crosstalk, and electromagnetic interference (EMI), ensuring stable performance even in electrically noisy environments.
• Passive Extension: Requires no external power or active components, relying on high-quality copper conductors and precise impedance control to maintain signal integrity over extended lengths.
• Durable Construction: Incorporates gold-plated contacts (e.g., min. 0.76µm thickness, per PCI-SIG standards) and robust insulation materials (e.g., PVC) for corrosion resistance and longevity. The right-angle connectors include reinforced housings to withstand mechanical stress in commercial environments.
• Plug-and-Play Installation: Requires no drivers or software configuration, supporting hot-plug functionality (where enabled by the host system) for seamless integration.

Specifications

• Product Model: PCIe 4.0 x1 to x1 Extension Cable, Male Down R/A to Female Up R/A, 85-ohm Low Impedance
• Connector A: PCIe 4.0 x1, Male, Down Right-Angle (Down R/A)
• Connector B: PCIe 4.0 x1, Female, Up Right-Angle (Up R/A)
• Connector Gender: Male to Female
• Cable Type: Passive Copper Extension Cable
• Cable Length: Standard options: 0.25m, 0.5m (Custom lengths up to 1.0m available; beyond may require validation for signal integrity)
• 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, typical for PCIe 4.0 low-loss applications)
• Shielding: Foil and braid shielding for EMI protection
• Operating Temperature: 0°C to +70°C (commercial grade); -40°C to +85°C (industrial options)
• Voltage Rating: 12V (max)
• Durability: Minimum 500 insertion cycles
• Safety Standards: RoHS compliant

Applications

• High-Density Data Centers: Deploying in servers and storage systems where PCIe 4.0 extensions are required for add-on cards (e.g., NICs, accelerators), with the 85-ohm impedance ensuring minimal signal loss and the hybrid right-angle design optimizing cable routing in cramped racks.
• Test and Development Benches: Facilitating hardware debugging and signal integrity validation where precise impedance matching is critical for probing PCIe 4.0 signals without introducing reflections or attenuation, and the hybrid orientation allows for flexible access in crowded setups.
• Enterprise Equipment: Supporting enterprise-grade systems requiring compliance with PCIe 4.0 specifications for reliable performance in business-critical applications, such as storage devices and high-speed test equipment.
• Gaming and Workstation Customization: Enabling flexible component placement in custom PC builds where motherboard slots are obstructed, with the 85-ohm cable ensuring stable performance for high-speed devices like capture cards or NVMe adapters, and the hybrid right-angle connectors providing clearance around large GPUs.
• Mining and Computational Setups: Providing reliable connections for multiple PCIe 4.0 devices (e.g., FPGAs, ASICs) in mining rigs or computational clusters, where the hybrid orientation helps manage cable clutter and maintain signal integrity at high speeds.
• Legacy System Upgrades: Extending PCIe 4.0 capabilities to older systems with obstructed slots, where the 85-ohm impedance helps maintain signal integrity during compatibility upgrades, and the hybrid right-angle design accommodates unique chassis layouts.