PCIe 4.0 x16 Male to x1 Female Down R/A Extension Cable

The PCIe 4.0 x16 Male to x1 Female Down R/A Extension Cable is a high-performance passive interconnect solution engineered for space-optimized systems requiring adaptive connectivity between different PCIe slot sizes while maintaining full PCIe 4.0 compliance. This cable converts a larger PCIe x16 slot interface into a smaller PCIe x1 interface, supporting a data transfer rate of 16.0 GT/s per lane and delivering a bandwidth of approximately 2 GB/s for the x1 interface, with backward compatibility to PCIe 3.0/2.0/1.0 devices. The design incorporates a Down Right-Angle (Down R/A) female connector that optimizes spatial efficiency by directing the cable downward relative to the motherboard plane, significantly reducing vertical profile in low-clearance environments such as 1U/2U servers, slim chassis, and compact workstations. Engineered 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-density configurations.

Features

• Advanced Form Factor Adaptation: Provides complete physical and electrical compatibility between PCIe x16 and x1 interfaces, enabling installation of x1 devices in x16 slots while maintaining x1 lane operation speeds.
• Down Right-Angle Space Optimization: The Down R/A female connector directs cable routing downward relative to the motherboard plane, minimizing vertical obstruction and preventing interference with adjacent components in low-profile configurations.
• PCIe 4.0 High-Speed Compliance: Fully supports PCIe 4.0 specifications with 16.0 GT/s per lane data transfer capability, delivering approximately 2 GB/s bandwidth for x1 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.
• Industrial-Grade Durability: Features gold-plated contacts, reinforced connector housings, and integrated strain relief mechanisms to withstand mechanical stress in demanding environments.

Specifications

• Product Model: PCIe 4.0 x16 Male to x1 Female Down R/A Extension Cable
• Connector A: PCIe 4.0 x16, Male, Edge Connector
• Connector B: PCIe 4.0 x1, Female, Down Right-Angle (Down R/A)
• Cable Type: Passive Copper Extension Assembly
• Pinout Configuration: PCIe-compliant, mapping x16 host interface to x1 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

• Ultra-Dense Server Environments: Ideal for 1U/2U rack-mounted systems where the Down R/A design maximizes space utilization for x1 add-on cards installed in x16 slots.
• Compact Workstation Solutions: Enables flexible component placement in space-constrained builds where standard x1 slots are unavailable or obstructed.
• Advanced Testing and Development: Facilitates comprehensive hardware validation and signal integrity analysis of x1 devices operating at PCIe 4.0 speeds.
• Industrial Computing Applications: Supports reliable PCIe expansion in ruggedized equipment where both high-speed performance and spatial efficiency are critical.