PCIe 4.0 x1 to x1 Extension Cable, Male STR to Female STR with Open Connector

The PCIe 4.0 x1 to x1 Extension Cable, Male STR to Female STR with Open Connector is a high-performance passive extension cable designed for next-generation computing systems, data centers, and development environments requiring both PCIe 4.0 signal integrity and debugging accessibility. This cable extends a PCIe 4.0 x1 interface using a straight (STR) male connector on one end and a straight (STR) female connector with an open/exposed design on the other, enabling reliable data transmission between a host motherboard and PCIe devices (e.g., network cards, FPGAs, or storage controllers) while providing physical access to the connection point for probing, testing, or thermal management. Engineered to support PCIe 4.0 specifications with minimal signal loss, this solution is ideal for applications where performance monitoring, validation, or airflow optimization are critical, such as test benches, high-density servers, or custom workstations.

Features

• Open Connector Design: Features an exposed/open-style female connector that allows for visual inspection, probing with oscilloscopes or logic analyzers, and enhanced airflow around the connection point, facilitating real-time signal integrity checks and thermal management during development or validation phases.
• PCIe 4.0 Compliance: Supports PCIe 4.0 specifications with a data transfer rate of 16.0 GT/s per lane, providing a bandwidth of ~1.969 GB/s for x1 configurations while ensuring backward compatibility with PCIe 3.0/2.0/1.0 devices.
• Enhanced Signal Integrity: Utilizes precision-engineered twin-axial cables (85-ohm impedance, as required for PCIe 4.0) with multi-layer shielding (foil and braid) to minimize insertion loss, crosstalk, and electromagnetic interference (EMI), ensuring stable performance at high speeds over extended lengths.
• Straight Connector Orientation: Employs straight (STR) male and female connectors for standard motherboard and device insertion, ensuring compatibility with mainstream systems while the open female end enables accessibility without compromising mechanical stability.
• Passive Extension: Requires no external power or active components, relying on high-quality copper conductors (e.g., 31 AWG, common for PCIe 4.0 applications) and impedance matching to maintain signal integrity.
• Durable Construction: Incorporates gold-plated contacts (e.g., min. 0.76µm thickness, per PCI-SIG standards) and robust insulation materials (e.g., PVC) for corrosion resistance and longevity in commercial environments. The open connector design maintains structural rigidity for repeated use.

Specifications

• Product Model: PCIe 4.0 x1 to x1 Extension Cable, Male STR to Female STR with Open Connector
• Connector A: PCIe 4.0 x1, Male, Straight (STR)
• Connector B: PCIe 4.0 x1, Female, Straight (STR), Open Design
• Connector Gender: Male to Female
• Cable Type: Passive Copper Extension Cable
• Cable Length: Standard options: 0.25m, 0.5m, 1.0m (Custom lengths up to 1.8m available; beyond may require active components)
• 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 PCIe 4.0 twin-axial cables)
• Shielding: Foil and braid shielding for EMI protection
• Operating Temperature: 0°C to +70°C (commercial grade); -40°C to +85°C (industrial options)
• Voltage Rating: 12V (max)
• Durability: Minimum 500 insertion cycles
• Safety Standards: RoHS compliant

Applications

• Testing and Development Benches: Facilitating hardware debugging, signal integrity validation, and prototyping where the open connector allows direct probing of PCIe 4.0 signals (e.g., using oscilloscopes or protocol analyzers) without cable disassembly, reducing downtime in labs or QA environments.
• High-Density Data Centers: Deploying in servers and storage systems where PCIe 4.0 extensions are needed for add-on cards (e.g., NICs, accelerators), with the open design improving airflow in cramped racks and enabling quick diagnostics during maintenance.
• High-Performance Computing (HPC): Supporting HPC clusters and AI training servers that require low-latency, high-bandwidth connections between compute nodes and PCIe 4.0 devices, while the open connector aids thermal management in power-dense setups.
• Gaming and Workstation Customization: Enabling flexible component placement (e.g., capture cards, USB controllers) in custom builds where motherboard slots are obstructed, with the open connector allowing for heat dissipation in overclocked or multi-GPU configurations.
• Embedded and Industrial Systems: Powering PCIe 4.0-based devices in industrial PCs or robotics where internal space is limited and the open connector provides accessibility for field diagnostics or upgrades.
• Legacy System Upgrades: Extending PCIe 4.0 capabilities to older systems with limited slot accessibility, allowing modern x1 devices (e.g., NVMe adapters) to be integrated while offering debugging access for compatibility checks.