IDE 4-Pin Molex to Fan Adapter Cable – 12V 7V 5V | OULLX

OULLX IDE 4-Pin Molex to 3-Pin / 4-Pin Fan Adapter Cable

Take full control of your PC's cooling performance with the OULLX IDE 4-Pin Molex to 3-Pin/4-Pin Fan Adapter Cable. This versatile converter lets you power and speed-regulate case fans directly from your power supply's Molex connector — no motherboard fan header required. Choose from three voltage outputs to fine-tune airflow and acoustics to your exact preference. Made in Mainland China.

Voltage Output Options

• Black Cable — 12V: Full-speed operation for maximum airflow
• Red Cable — 7V: Mid-speed operation for a balance of cooling and quieter acoustics
• White/Blue Cable — 5V: Low-speed operation for near-silent, whisper-quiet running

Key Features

• Converts IDE 4-Pin Molex power to standard 3-Pin or 4-Pin fan connectors
• Three voltage taps (12V / 7V / 5V) for easy fan speed selection without software
• Splitter design allows multiple fan connections from a single Molex source
• Reduces fan noise by stepping down voltage — ideal for quieter builds
• No assembly required — plug-and-play installation
• Compatible with most standard PC case fans (3-pin and 4-pin)
• Durable wire construction with color-coded cables for easy identification
• No high-concern chemicals — safe for use in your computer build

Specifications

• Type: Cable Adapter / Fan Converter
• Input: IDE 4-Pin Molex
• Output: 3-Pin and/or 4-Pin fan connector(s)
• Voltage Options: 12V, 7V, 5V
• Assembly Required: No
• Brand: OULLX
• Origin: Made in Mainland China

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Frequently Asked Questions

Q: What is the difference between the 12V, 7V, and 5V outputs on this fan adapter cable?

A: The color-coded cables each deliver a different voltage to your fan. The black cable (12V) runs the fan at full speed for maximum cooling. The red cable (7V) runs it at a mid-range speed — a great balance of cooling and quieter operation. The white/blue cable (5V) runs the fan at low speed for near-silent performance. Simply connect your fan to whichever cable matches your preferred speed setting.

Q: Is this fan adapter compatible with both 3-pin and 4-pin fans?

A: Yes! This IDE Molex fan adapter cable supports both 3-pin and 4-pin PC case fan connectors, making it compatible with the vast majority of standard computer case fans. The voltage-based speed control works through the power line, so it functions independently of PWM signals.

Q: Do I need to install any software or change BIOS settings to use this cable?

A: No software or BIOS configuration is needed. This is a completely plug-and-play adapter — simply connect the Molex end to your power supply and plug your fan into the desired voltage output cable. Fan speed is controlled entirely by the voltage selection, requiring no additional setup.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.