12V DC to 4-Pin CPU Fan Power Adapter Cable | OFC Wire

Keep your PC running cool and quiet with this 12V DC to 4-Pin CPU Fan Power Adapter Cable. Designed for seamless compatibility with standard computer CPU fans, this conversion cable lets you connect a 4-pin fan directly to a 12V DC power source — no complicated wiring required. Built with oxygen-free copper conductors, it delivers a clean, stable signal with minimal resistance for reliable, long-lasting performance.

Whether you're building a custom PC, upgrading a cooling system, or replacing a worn-out adapter, this compact cable is a straightforward, effective solution for your setup.

Key Features

• 12V DC Input: Compatible with standard 12V DC power supplies for consistent fan operation
• 4-Pin Connector: Fits most standard CPU and case fans with a 4-pin interface
• Oxygen-Free Copper Construction: Ensures low resistance, clean power delivery, and long-term durability
• Compact & Flexible: Lightweight and easy to route inside any PC case or enclosure
• Easy Installation: Plug-and-play design — no tools or soldering needed
• Versatile Use: Ideal for PC builds, DIY electronics projects, and cooling system upgrades

Specifications

• Voltage: 12V DC
• Connector Type: DC input to 4-pin CPU fan
• Conductor Material: Oxygen-free copper
• Application: Computer CPU fans, case fans, DIY cooling systems

Why Choose Oxygen-Free Copper?

Oxygen-free copper (OFC) offers superior electrical conductivity compared to standard copper wire. It reduces signal loss, minimizes heat build-up at the connector, and resists corrosion — making it the ideal choice for power cables used in electronics and computer hardware.

For more guidance on computer hardware safety and best practices, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What does this 12V DC to 4-pin CPU fan power adapter cable do?

A: This adapter cable converts a standard 12V DC power connection into a 4-pin CPU fan connector, allowing you to power compatible computer fans directly from a 12V DC source. It's ideal for custom PC builds, cooling upgrades, and DIY electronics projects.

Q: What fans is this 4-pin power adapter cable compatible with?

A: This cable is compatible with most standard 4-pin CPU and case fans used in desktop computers and custom builds. Always check your fan's connector type before purchasing to ensure a proper fit.

Q: Why is oxygen-free copper used in this power adapter cable?

A: Oxygen-free copper provides better electrical conductivity, lower resistance, and improved durability compared to standard copper. This means more stable power delivery to your fan and a longer-lasting cable overall.

Q: Is this cable easy to install?

A: Yes — the cable features a plug-and-play design. Simply connect the DC end to your 12V power source and plug the 4-pin connector into your fan. No tools, soldering, or technical expertise required.