PCIe 3.0 x16 Male to x16 Female Extension Cable

The PCIe 3.0 x16 Male to x16 Female Extension Cable is a high-performance passive interconnect solution designed for extending PCIe x16 slots while maintaining full PCIe 3.0 compliance. This cable preserves all 16 PCIe lanes, supporting a data transfer rate of 8.0 GT/s per lane and delivering a total bandwidth of approximately 15.75 GB/s without lane reduction. It ensures backward compatibility with PCIe 2.0/1.0 devices and is constructed with 95-ohm impedance-matched wiring (as referenced in DFRobot’s M.2 M Key to PCIe 3.0 x16 cable design) and multi-layer EMI shielding to minimize signal degradation . The cable incorporates robust materials such as metal-shielded conductors and foldable polymer jackets, enabling flexible routing in space-constrained environments like compact workstations, vertical GPU setups, or server racks. The passive design requires no external drivers, providing plug-and-play functionality for applications such as external graphics cards or PCIe expansion .

Features

• Full x16 Lane Support: Maintains all 16 PCIe lanes, ensuring maximum bandwidth utilization of ~15.75 GB/s for PCIe 3.0 devices like high-end GPUs or accelerators .
• High-Speed Compliance: Supports PCIe 3.0 specifications with 8.0 GT/s per lane data transfer, leveraging 128b/130b encoding for efficient transmission .
• Enhanced Shielding: Utilizes multi-layer EMI shielding (e.g., metal-layer shielding and conductive polymer, as seen in DFRobot’s design) to minimize crosstalk, insertion loss, and electromagnetic interference .
• Flexible and Durable Construction: Features foldable, flat cable geometry (e.g., 3M™ Twin Axial cable technology) for easy bending and routing without compromising signal integrity .
• Passive Design: Operates without external power or active components, relying on high-quality copper conductors and precise impedance control .
• Plug-and-Play Installation: Requires no driver configuration, enabling seamless integration with standard PCIe x16 slots on Intel/AMD motherboards .

Specifications

• Product Model: PCIe 3.0 x16 Male to x16 Female Extension Cable
• Connector A: PCIe 3.0 x16, Male, Edge Connector
• Connector B: PCIe 3.0 x16, Female, Receptacle
• Cable Type: Passive Copper Extension Assembly
• Pinout Configuration: PCIe-compliant 1:1 lane mapping
• Data Rate Support: Up to 8.0 GT/s (PCIe 3.0) 
• Supported Protocols: PCI Express 3.0/2.0/1.0
• Impedance: 95 ohms differential (aligned with DFRobot’s 95? specification) 
• Cable Length: Standard options: 200mm, 250mm, 300mm (custom lengths up to 500mm available; longer lengths require validation) 
• Wire Gauge: 28–34 AWG (typical for PCIe 3.0 applications, as referenced in Molex’s 28AWG design) 
• Shielding: Foil and braid for comprehensive EMI protection 
• Operating Temperature: -20°C to +85°C (commercial grade, per industry standards) 
• Durability: Minimum 500 insertion cycles
• Safety Standards: RoHS compliant 

Applications

• Vertical GPU Mounting: Enabling flexible graphics card placement in custom PC builds or compact cases, as highlighted in Corsair’s 300mm extension cable for vertical installation .
• Server and Data Center Expansion: Facilitating PCIe slot extension in high-density rack systems (e.g., Lenovo SR850 V3 PCIe riser configurations) for add-on cards like NICs or accelerators .
• Test and Development Benches: Supporting hardware validation and signal integrity analysis of x16 devices without motherboard slot constraints .
• Industrial and Embedded Systems: Providing reliable PCIe expansion in ruggedized equipment where spatial flexibility and full bandwidth are critical .