PCIe 3.0 x8 Male to x1 Female Up R/A Extension Cable

The PCIe 3.0 x8 Male to x1 Female Up R/A Extension Cable is a specialized passive interconnect solution engineered for space-constrained systems requiring both form-factor adaptation and optimized vertical cable routing. This cable converts a larger PCIe x8 slot interface to a smaller PCIe x1 interface while incorporating an Up Right-Angle (Up R/A) female connector to facilitate clearance above the connected add-in card. Supporting PCIe 3.0 specifications with a data transfer rate of 8.0 GT/s per lane, it provides a bandwidth of approximately 984.6 MB/s for the x1 interface while maintaining backward compatibility with PCIe 2.0/1.0 devices . Constructed with impedance-controlled wiring (targeting 85-ohm differential) and multi-layer shielding, this cable minimizes signal degradation while addressing mechanical routing challenges in dense environments such as 1U/2U servers, test benches, or compact workstations .

Features

• Form Factor Adaptation: Enables physical and electrical compatibility between PCIe x8 and x1 interfaces, allowing x1 devices to be installed in x8 slots while operating at x1 lane speeds .
• Up Right-Angle Connector Optimization: The Up R/A female connector directs the cable upward relative to the motherboard plane, reducing mechanical obstruction in low-clearance configurations and improving airflow management .
• PCIe 3.0 Compliance: Supports PCIe 3.0 specifications with 8.0 GT/s per lane data transfer, leveraging 128b/130b encoding for nearly 100% transmission efficiency .
• Enhanced Signal Integrity: Utilizes multi-layer foil and braid shielding to minimize crosstalk, insertion loss, and electromagnetic interference (EMI) .
• Passive Design: Requires no external power or active components, relying on high-quality copper conductors and precise impedance control for reliable operation .
• Durable Construction: Incorporates robust materials such as copper cores , shielded connectors, and reinforced housings to withstand repeated mating cycles.

Specifications

• Product Model: PCIe 3.0 x8 Male to x1 Female Up R/A Extension Cable
• Connector A: PCIe 3.0 x8, Male, Edge Connector
• Connector B: PCIe 3.0 x1, Female, Up Right-Angle (Up R/A)
• Cable Type: Passive Copper Extension Assembly
• Pinout Configuration: PCIe-compliant, mapping x8 host interface to x1 device lanes
• Data Rate Support: Up to 8.0 GT/s (PCIe 3.0) 
• Supported Protocols: PCI Express 3.0/2.0/1.0
• Impedance: 85 ohms differential (target, per PCIe 3.0 standards)
• Cable Length: Standard options: 0.25 m, 0.5 m (custom lengths up to 1.0 m available; longer lengths require validation)
• Wire Gauge: 28–34 AWG (typical for PCIe 3.0 applications) 
• Shielding: Foil and braid for EMI protection
• Operating Temperature: -20°C to +80°C (commercial grade) 
• Durability: Minimum 500 insertion cycles
• Safety Standards: RoHS compliant

Applications

• Space-Constrained Servers: Deploying in 1U/2U rack-mounted systems where the Up R/A design optimizes vertical clearance for x1 cards (e.g., NICs, SATA controllers) installed in x8 slots .
• Test and Development Benches: Facilitating hardware validation and signal integrity analysis of x1 devices in multi-slot environments, with the Up R/A connector enabling accessible probing .
• Compact Workstations: Enabling flexible component placement in small-form-factor builds where motherboard x1 slots are obstructed by larger components.
• Mining Rigs or Computational Setups: Supporting multiple PCIe devices in dense configurations where lane-count flexibility and efficient cable routing are critical.