PCIe 4.0 x4 Male to x4 Female Up R/A Extension Cable

The PCIe 4.0 x4 Male to x4 Female Up R/A Extension Cable is a high-performance passive interconnect solution designed for next-generation computing systems, data centers, and space-constrained environments requiring flexible PCIe topology and optimized vertical clearance. This cable extends a PCIe 4.0 x4 interface using a standard male edge connector on one end and an Up Right-Angle (Up R/A) female connector on the other, facilitating efficient cable routing in dense configurations. Supporting PCIe 4.0 specifications with a data transfer rate of 16.0 GT/s per lane, it delivers a total bandwidth of approximately 7.88 GB/s for x4 configurations while maintaining backward compatibility with PCIe 3.0/2.0/1.0 devices . Engineered with precision 85-ohm impedance-matched wiring (e.g., 31 AWG low-loss twin-axial cable) and multi-layer shielding, this cable ensures signal integrity at high speeds . The Up R/A design minimizes obstruction in cramped enclosures, making it ideal for high-density servers, test benches, and custom workstations where airflow management and component accessibility are critical.

Features

• Up Right-Angle Connector Optimization: The Up R/A female connector directs the cable upward relative to the motherboard plane, reducing mechanical interference with adjacent components (e.g., large GPUs or cooling systems) and simplifying cable management in vertically constrained setups .
• Full x4 Lane Support: Preserves all four PCIe lanes, ensuring maximum bandwidth utilization (~7.88 GB/s for PCIe 4.0) without lane reduction .
• 85-Ohm Impedance Matching: Precisely controlled differential impedance (85 ohms) minimizes signal reflections and ensures compliance with PCIe 4.0 specifications, critical for maintaining integrity at 16.0 GT/s data rates .
• Enhanced Signal Integrity: Utilizes low-loss twin-axial cables with multi-layer foil and braid shielding to reduce insertion loss, crosstalk, and electromagnetic interference (EMI), even in electrically noisy environments .
• Passive Design: Requires no external power or active components, relying on high-quality copper conductors and robust construction for plug-and-play operation .
• Durable Construction: Incorporates gold-plated contacts (e.g., ?0.76µm thickness) and reinforced housings with strain relief, rated for ?500 insertion cycles in commercial or industrial applications .

Specifications

• Product Model: PCIe 4.0 x4 Male to x4 Female Up R/A Extension Cable
• Connector A: PCIe 4.0 x4, Male, Edge Connector (Straight)
• Connector B: PCIe 4.0 x4, Female, Up Right-Angle (Up R/A)
• Cable Type: Passive Copper Extension Assembly
• Pinout Configuration: Standard PCIe-compliant 1:1 lane mapping
• 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 low-loss applications) 
• Shielding: Foil and braid for comprehensive EMI protection
• Cable Length: Standard options: 0.25m, 0.5m, 1.0m (custom lengths up to 1m; longer lengths require validation) 
• Operating Temperature: -40°C to +85°C (industrial 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 needed for add-on cards (e.g., NICs, accelerators), with the Up R/A design optimizing cable routing in cramped racks and improving airflow .
• Test and Development Benches: Facilitating hardware validation and signal integrity analysis where flexible access to PCIe slots is required for debugging or performance testing 
• Gaming and Workstation Customization: Enabling repositioning of x4 cards (e.g., capture cards, NVMe adapters) in small-form-factor builds where motherboard slots are obstructed by large components .
• Industrial and Embedded Systems: Supporting PCIe expansion in ruggedized equipment where reliable high-speed connections and space-efficient routing are essential .