---
product_id: 123503082
title: "CRJ 12V Step-Up USB Fan Power Adapter Cable - 24-inch (60cm), Black Sleeved - Full Fan Speed Adapter for 3-Pin & 4-Pin PC Cooling Fans"
brand: "crj electronics"
price: "559164₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Crj Electronics"
url: https://www.desertcart.vn/products/123503082-crj-12v-step-up-usb-fan-power-adapter-cable-24
store_origin: VN
region: Vietnam
---

# 12V step-up from USB 5V Durable black nylon sleeving Compatible with 3-pin & 4-pin fans CRJ 12V Step-Up USB Fan Power Adapter Cable - 24-inch (60cm), Black Sleeved - Full Fan Speed Adapter for 3-Pin & 4-Pin PC Cooling Fans

**Brand:** crj electronics
**Price:** 559164₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your cooling game with USB-driven 12V speed!

## Quick Answers

- **What is this?** CRJ 12V Step-Up USB Fan Power Adapter Cable - 24-inch (60cm), Black Sleeved - Full Fan Speed Adapter for 3-Pin & 4-Pin PC Cooling Fans by crj electronics
- **How much does it cost?** 559164₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/123503082-crj-12v-step-up-usb-fan-power-adapter-cable-24)

## 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

- • **Extended Reach:** Generous 24-inch (60cm) cable length for flexible fan placement and tidy setups.
- • **Seamless Compatibility:** Works flawlessly with both 3-pin and 4-pin PC cooling fans, plus PWM controllers and fan hubs.
- • **Sleek & Durable Design:** Black nylon sleeving and RoHS-compliant connectors ensure longevity with a professional look.
- • **Universal Fan Power Boost:** Transform any USB port into a full 12V fan power source for maximum cooling performance.
- • **Versatile Cooling Upgrade:** Perfect for gaming rigs, AV equipment, and network devices needing enhanced airflow.

## Overview

The CRJ 12V Step-Up USB Fan Power Adapter Cable converts standard 5V USB output to a full 12V supply, enabling 3-pin and 4-pin PC cooling fans to run at optimal speeds. With a 24-inch black nylon-sleeved cable, it offers durable, flexible connectivity for enhanced cooling in computers, gaming consoles, and other electronics.

## Description

This unique CRJ Electronics USB fan cable allows you to power most standard 3-pin and 4-pin PC fans at full 12V. Ideal for external fan cooling applications.

Review: Plug & Play Ready! - Work great to run my 2 CPU cooling fans!
Review: Perfect if you need a small fan! - I have more than my fair share of PC fans and in a flavor of sizes (mostly 120mm and 140mm). I actually use them to keep network equipment cool at my parents house (one is pointed to an Arris SB8200 modem, another for the Asus AC68U). The modem tends to have connectivity issues with lots of uncorrectables when left running as is. After putting a fan on it, blowing directly onto the heatsink, the number of uncorrectables dropped significantly. Since there's no way to easily attach a fan to the modem, I used this adapter and an old USB charger to power up two Cooler Master fans. Even at max RPM (about 1100RPM), the fans are completely silent and keep my parents network problem free. This adapter will force any 2/3/4 pin fan to operate at full speed, so be mindful if this will be in a sound sensitive environment.

## Features

- Universal Fan Power Solution: Easily power any 3-pin or 4-pin computer cooling fan directly from a USB Type-A port, ensuring full 12V fan speeds for effective cooling.
- Integrated Voltage Booster: Built-in 12V step-up circuit boosts standard USB 5V output to 12V (0.4A max), making it compatible with PWM controllers and fan hubs for versatile use.
- Cooling Versatility: Ideal for enhancing airflow in electronic devices with USB power output, such as gaming consoles, AV receivers, and network routers.
- Robust Construction: RoHS compliant with all-black connectors and high density black nylon sleeving, offering durability and a sleek look with minimal wire exposure.
- Cable length (including connectors) is 24 inches (60cm)

## Product Details

- **Brand:** CRJ Electronics
- **Connector Type:** USB Type A
- **Cable Type:** USB
- **Compatible Devices:** Personal Computer, Gaming Console, AV Receiver, Network Router
- **Special Feature:** Sleeved

## Images

![CRJ 12V Step-Up USB Fan Power Adapter Cable - 24-inch (60cm), Black Sleeved - Full Fan Speed Adapter for 3-Pin & 4-Pin PC Cooling Fans - Image 1](https://m.media-amazon.com/images/I/81i-Fi7wiGL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can you use this on a usb power source that is 12v ?**
A: This will not negotiate 12v from a USB charger. It will always draw 5v from the charger and boost to 12v

**Q: Can this be used to send ASCII commands from a PC to hdmi multi viewer product?**
A: I don't think so. This is for powering a PC fan using a USB power source. It's only 3 pins as well so it lacks extra data communication.

**Q: Will this work with a 12v 0.12a fan? its a be quiet shadow wings 2 120mm fan.**
A: It should work with any 12v fan. I had no issue using it on a similar fan.

**Q: Does the step up circuit have a frequency noise issue?**
A: I never noticed anything. I had an ITX motherboard in an enclosed space so I used this and an exhaust fan. Sounded like a normal 120mm fan

## Customer Reviews

### ⭐⭐⭐⭐⭐ Plug & Play Ready!
*by K***S on December 29, 2025*

Work great to run my 2 CPU cooling fans!

### ⭐⭐⭐⭐⭐ Perfect if you need a small fan!
*by W***A on November 1, 2024*

I have more than my fair share of PC fans and in a flavor of sizes (mostly 120mm and 140mm). I actually use them to keep network equipment cool at my parents house (one is pointed to an Arris SB8200 modem, another for the Asus AC68U). The modem tends to have connectivity issues with lots of uncorrectables when left running as is. After putting a fan on it, blowing directly onto the heatsink, the number of uncorrectables dropped significantly. Since there's no way to easily attach a fan to the modem, I used this adapter and an old USB charger to power up two Cooler Master fans. Even at max RPM (about 1100RPM), the fans are completely silent and keep my parents network problem free. This adapter will force any 2/3/4 pin fan to operate at full speed, so be mindful if this will be in a sound sensitive environment.

### ⭐⭐⭐⭐⭐ Full Power Case Fans
*by J***3 on April 10, 2025*

Used for a Be quite case fan I mounted to an xbox. It works well and provides power for what appears to be full power, compared to my be quite fans in my PC.

## Frequently Bought Together

- CRJ 12V Step-Up USB Fan Power Adapter Cable - 24-inch (60cm), Black Sleeved - Full Fan Speed Adapter for 3-Pin/4-Pin PC Cooling Fans
- Noctua NA-FC1, 4-Pin PWM Fan Controller (Black)
- Noctua NF-P12 redux-1700 PWM, High Performance Cooling Fan, 4-Pin, 1700 RPM (120mm, Grey)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-26*