PCIe 4.0 x16 Male to x4 Female Up R/A Extension Cable

The PCIe 4.0 x16 Male to x4 Female Up R/A Extension Cable is a high-performance passive interconnect solution engineered for space-constrained next-generation systems requiring adaptive connectivity between different PCIe slot sizes while maintaining PCIe 4.0 compliance. This cable converts a larger PCIe x16 slot interface into a smaller PCIe x4 interface, supporting a data transfer rate of 16.0 GT/s per lane and delivering a total bandwidth of approximately 7.88 GB/s for the x4 configuration, with backward compatibility to PCIe 3.0/2.0/1.0 devices. The design incorporates an Up Right-Angle (Up R/A) female connector that optimizes vertical clearance by directing the cable upward relative to the motherboard plane, reducing mechanical obstruction in dense configurations such as compact workstations or servers requiring optimized space utilization. Constructed with 85-ohm impedance-matched wiring and advanced multi-layer shielding, this cable ensures superior signal integrity while addressing challenging mechanical routing requirements in high-speed applications.

Features

• Advanced Form Factor Adaptation: Provides complete physical and electrical compatibility between PCIe x16 and x4 interfaces, enabling installation of x4 devices in x16 slots while maintaining x4 lane operation speeds.
• Up Right-Angle Space Optimization: The Up R/A female connector facilitates upward cable routing relative to the motherboard plane, minimizing interference with adjacent components and improving airflow management in cramped enclosures.
• PCIe 4.0 High-Speed Compliance: Fully supports PCIe 4.0 specifications with 16.0 GT/s per lane data transfer capability, delivering approximately 7.88 GB/s bandwidth for x4 interface applications.
• Precision 85-Ohm Impedance Control: Implements carefully controlled differential impedance characteristics to minimize signal reflections and ensure reliable performance at PCIe 4.0 data rates.
• Enhanced Signal Integrity Protection: Utilizes low-loss twin-axial cable construction with multi-layer foil and braid shielding to reduce insertion loss, crosstalk, and electromagnetic interference.
• Robust Passive Design: Operates without external power or active components, leveraging high-quality copper conductors and precision engineering for dependable plug-and-play functionality.

Specifications

• Product Model: PCIe 4.0 x16 Male to x4 Female Up R/A Extension Cable
• Connector A: PCIe 4.0 x16, Male, Edge Connector
• Connector B: PCIe 4.0 x4, Female, Up Right-Angle (Up R/A)
• Cable Type: Passive Copper Extension Assembly
• Pinout Configuration: PCIe-compliant, mapping x16 host interface to x4 device lanes
• 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 (fully compliant with PCIe 4.0 standards)
• Wire Gauge: 31 AWG (high-precision copper, optimized for low-loss applications)
• Shielding: Multi-layer foil and braid for comprehensive EMI protection
• Cable Length: Standard options: 0.25m, 0.5m (custom lengths up to 1.0m available with validation)
• Operating Temperature: -40°C to +85°C (industrial grade rating)
• Durability: Minimum 500 insertion cycles
• Safety Standards: RoHS compliant

Applications

• High-Density Server Environments: Ideal for rack-mounted systems where the Up R/A design optimizes vertical clearance for x4 add-on cards installed in x16 slots.
• Compact Workstation Solutions: Enables flexible component placement in space-constrained builds where standard x4 slots are unavailable or obstructed by larger components.
• Advanced Testing and Development: Facilitates comprehensive hardware validation and signal integrity analysis of x4 devices operating at PCIe 4.0 speeds.
• Industrial Computing Applications: Supports reliable PCIe expansion in equipment where both high-speed performance and spatial efficiency are critical requirements.