---
product_id: 470167592
title: "CRJ 3-Pin Fan Header to 12V 4-Pin Molex Power Adapter Cable - 12 inch (30cm), Black Sleeved - Power 4-Pin Peripheral Molex Devices from PC Fan Headers"
brand: "crj electronics"
price: "86 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/470167592-crj-3-pin-fan-header-to-12v-4-pin-molex
store_origin: RO
region: Romania
---

# High output current fan header compatible 12-inch sleeved cable length Stealthy all-black connectors & sleeving CRJ 3-Pin Fan Header to 12V 4-Pin Molex Power Adapter Cable - 12 inch (30cm), Black Sleeved - Power 4-Pin Peripheral Molex Devices from PC Fan Headers

**Brand:** crj electronics
**Price:** 86 Lei
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your rig with sleek simplicity — no PSU Molex needed!

## Quick Answers

- **What is this?** CRJ 3-Pin Fan Header to 12V 4-Pin Molex Power Adapter Cable - 12 inch (30cm), Black Sleeved - Power 4-Pin Peripheral Molex Devices from PC Fan Headers by crj electronics
- **How much does it cost?** 86 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/470167592-crj-3-pin-fan-header-to-12v-4-pin-molex)

## Best For

- crj electronics enthusiasts

## Why This Product

- Trusted crj electronics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek Black Sleeving:** Minimal wire visibility for a clean, professional build
- • **Plug & Play Confidence:** RoHS compliant with secure pin alignment for safe connections
- • **Streamlined Power Delivery:** Bypass bulky PSU Molex with direct fan header power
- • **Optimized for Modern Boards:** Leverages high-output fan headers on latest ATX motherboards
- • **Universal 12V Compatibility:** Supports 4-pin Molex water pumps & peripherals effortlessly

## Overview

This 12-inch black sleeved adapter cable converts a 3-pin fan header into a 12V 4-pin Molex power source, enabling direct power to water cooling pumps and other 12V peripherals from modern high-output motherboard fan headers. Designed for clean builds and efficient power delivery, it eliminates the need for traditional PSU Molex connections while ensuring safe, RoHS-compliant operation.

## Description

This cable is as simple as it appears. Power watercooling pumps and other 12V 4-pin devices using a fan header. The output current is limited to the capabilities of the fan header that this cable is connected to. Modern PC motherboards are now commonly available with higher output current capacity fan headers (W_PUMP+ fan header on ASUS motherboards as an example). Due to the possibility of connecting things not intended for a fan header the exercise of due diligence is absolutely necessary. Please reference the manufacturer documentation of your devices to avoid current overdraw.

## Features

- Designed specifically to eliminate the need for a power supply 4-pin peripheral molex connection due to the high output current fan headers found on many modern ATX motherboards.
- Compatible with 4-pin peripheral molex power water pumps and other 12V input devices (please exercise due diligence to avoid damage from current overdraw and disable 3-pin fan speed control in BIOS to ensure 12V output from the fan header)
- RoHS Compliant. Each cable is constructed with all black connectors and high density black sleeving for minimal wire visibility.
- NOTE: Please take care to align the pins when making the 4-pin peripheral connection as they are under some tension from the sleeving.
- Total cable length (including connectors) is 12 inches (30cm)

## Product Details

- **Brand:** CRJ Electronics
- **Material:** Polycarbonate (PC)
- **Item Weight:** 0.01 Kilograms
- **Connector Type:** 3-pin Fan, 4-pin Molex
- **Wire Diameter:** 0.64 Millimeters

## Images

![CRJ 3-Pin Fan Header to 12V 4-Pin Molex Power Adapter Cable - 12 inch (30cm), Black Sleeved - Power 4-Pin Peripheral Molex Devices from PC Fan Headers - Image 1](https://m.media-amazon.com/images/I/61PBsvnrGxL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- CRJ 3-Pin Fan Header to 12V 4-Pin Molex Power Adapter Cable - 12 inch (30cm), Black Sleeved - Power 4-Pin Peripheral Molex Devices from 3-Pin & 4-Pin Fan Headers
- StarTech.com Expansion Slot Rear Exhaust Cooling Fan with LP4 Connector (FANCASE), Black, 1 Count (Pack of 1)
- okgear 3pin Power to 4pin molex Adapter

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**Shop now:** [https://www.desertcart.ro/products/470167592-crj-3-pin-fan-header-to-12v-4-pin-molex](https://www.desertcart.ro/products/470167592-crj-3-pin-fan-header-to-12v-4-pin-molex)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-27*