Internal power cable Silverstone SST-RC04B-400 0.4 m

The Silverstone SST-RC04B-400 is a 0.4 m internal power cable designed for PCI‑E x16 (Gen 3.0) connections. It provides a short, direct link between power supply and PCI‑Express devices to maintain stable power delivery for high-performance graphics cards and other PCI‑E x16 components. The cable is manufactured with quality conductors and insulation to support reliable operation inside PC cases where space and cable routing are constrained.

Advantages

This internal power cable offers a compact length that reduces clutter and improves airflow within the case. Its PCI‑E x16 Gen 3.0 compatible connectors ensure proper mating with standard PCI‑Express power interfaces and maintain electrical integrity under load. The construction emphasizes durability and consistent contact performance, delivering a reliable connection for demanding systems without introducing unnecessary resistance or signal degradation.

Suitable for

• Connecting a power supply to a PCI‑E x16 graphics card or accelerator when a short internal cable is required
• Cable management in compact or mid-tower PC builds where routing space is limited
• Replacing or upgrading worn internal PCI‑E power cables to restore secure power delivery

Key specifications

• Cable length: 0.4 m
• Connector type (end 1): PCI‑E x16 (Gen 3.0)
• Connector type (end 2): PCI‑E x16 (Gen 3.0)
• Intended use: internal PC power connection for PCI‑Express x16 devices

How to use

Power off the PC and disconnect it from mains power before installing or replacing the cable. Route the 0.4 m cable inside the case to avoid sharp bends and to maintain clearance from fans and heatsinks. Connect one PCI‑E x16 connector to the power supply cable header and the other to the graphics card or PCI‑E device, ensuring each connector is fully seated and the latch (if present) engages. After installation, verify that all connections are secure and power on the system to confirm stable operation.

Recommendations

Use this short internal cable where minimal length is required to reduce excess cabling and improve airflow. Avoid excessive bending or pulling on the cable, and periodically check connections if the system is frequently moved or modified.