PCIe 4.0 x16 Male to x4 Female Extension Cable

The PCIe 4.0 x16 Male to x4 Female Extension Cable is a high-performance passive interconnect solution engineered for 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. Constructed with 85-ohm impedance-matched wiring and advanced multi-layer shielding, this cable minimizes signal degradation while ensuring reliable performance in high-speed applications. The passive design addresses form-factor adaptation needs in demanding environments such as data centers, test benches, and high-performance workstations where flexible card placement is essential without compromising signal integrity at PCIe 4.0 speeds.

Features

• Form Factor Adaptation: Enables physical and electrical compatibility between PCIe x16 and x4 interfaces, allowing x4 devices to be installed in x16 slots while operating at x4 lane speeds.
• PCIe 4.0 Compliance: Supports PCIe 4.0 specifications with a data transfer rate of 16.0 GT/s per lane, delivering approximately 7.88 GB/s bandwidth for the x4 interface.
• 85-Ohm Impedance Matching: Precisely controlled differential impedance reduces signal reflections and ensures 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 minimize insertion loss, crosstalk, and electromagnetic interference.
• Passive Design: Requires no external power or active components, relying on high-quality copper conductors and robust construction for reliable operation.
• Durable Construction: Incorporates gold-plated contacts and reinforced housings to withstand mechanical stress in demanding environments.

Specifications

• Product Model: PCIe 4.0 x16 Male to x4 Female Extension Cable
• Connector A: PCIe 4.0 x16, Male, Edge Connector
• Connector B: PCIe 4.0 x4, Female, Receptacle
• 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 (compliant with PCIe 4.0 standards)
• Wire Gauge: 31 AWG (high-precision copper, optimized for low-loss applications)
• Shielding: 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)
• Durability: Minimum 500 insertion cycles
• Safety Standards: RoHS compliant

Applications

• High-Performance Computing: Deploying in servers and workstations where x4 add-on cards need installation in x16 slots while maintaining PCIe 4.0 performance.
• Data Center Infrastructure: Supporting flexible card placement in rack-mounted systems where space optimization is critical.
• Test and Development Environments: Facilitating hardware validation and signal integrity analysis of x4 devices operating at PCIe 4.0 speeds.
• Industrial and Embedded Systems: Enabling reliable PCIe expansion in equipment where both high-speed performance and form-factor adaptability are essential.