---
product_id: 62009860
title: "12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector"
brand: "usb2fan"
price: "€ 12.00"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.fi/products/62009860-12v-fan-to-usb-adapter-with-converter-black-male-to
store_origin: FI
region: Finland
---

# 12V full-speed fan output 25cm cable length 5V USB input 12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector

**Brand:** usb2fan
**Price:** € 12.00
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your cool with USB ease—because your gear deserves the best breeze!

## Quick Answers

- **What is this?** 12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector by usb2fan
- **How much does it cost?** € 12.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/62009860-12v-fan-to-usb-adapter-with-converter-black-male-to)

## Best For

- usb2fan enthusiasts

## Why This Product

- Trusted usb2fan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **True 12V Output:** Delivers real 12 volts for full-speed fan performance, ensuring optimal cooling.
- • **Compact & Portable:** Slim 25cm cable fits seamlessly into tight spaces—perfect for on-the-go setups.
- • **Plug & Play Power Boost:** Instantly powers your 12V fan from any USB port—no extra setup needed.
- • **Universal Compatibility:** Works with all 12V fans featuring Molex 3-pin connectors—no compatibility guesswork.
- • **Energy-Efficient Cooling:** Max 400mA current keeps your fan running efficiently without draining your USB source.

## Overview

This 12V Fan to USB Adapter converts a standard 5V USB Type A port into a reliable 12V power source for fans with Molex 3-pin connectors. With a max current of 400mA and a 25cm cable, it enables full-speed fan operation without additional batteries or assembly, making it an essential accessory for efficient, compact cooling solutions.

## Description

Quick and easy connection of a standard 12V fan with Molex plug to a USB socket. Plug in and you're done. Cable length: approx. 25cm The fan can have a maximum current consumption of 400 mA. Attention: A connected fan starts immediately.

Review: powers fan via sky box usb port - It us what it is. I am using it to power a 120mm fan on my small comms cabinet. Taking power from the usb port on the back of my sky box. It comes with a resistor to step down the voltage to enable the fan to run slower. I am using this. Make sure that the fan you are using is capable at running at the lower voltage. Some will not and some may require a push with your fingers to get going
Review: Four Stars - does what it says but extremely expensive

## Features

- Adapter for connecting a 12V fan to a USB socket.
- Input: 5V USB 2.0 Type A Male
- Output: 12V Female Molex 3-pin Max 400mA
- Real 12 volt output voltage
- A connected 12 V fan runs at full speed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00MNB40ZU |
| Batteries required | No |
| Customer Reviews | 4.4 4.4 out of 5 stars (11) |
| Date First Available | 25 Feb. 2015 |
| Included components | Cord |
| Is assembly required | No |
| Item model number | FAN2USB |
| Item weight | 12 Grams |
| Product Dimensions | 30.99 x 1.5 x 0.99 cm; 12 g |

## Product Details

- **Brand:** USB2FAN
- **Colour:** black
- **Connector gender:** Male-to-Female
- **Plug type:** Type A
- **Voltage:** 12 Volts

## Images

![12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector - Image 1](https://m.media-amazon.com/images/I/71OPxqeEkYL.jpg)
![12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector - Image 2](https://m.media-amazon.com/images/I/81ojfa1ZaOL.jpg)
![12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector - Image 3](https://m.media-amazon.com/images/I/81ZT50jX4DL.jpg)
![12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector - Image 4](https://m.media-amazon.com/images/I/81zNKvnTzYL.jpg)
![12V Fan to USB Adapter with Converter - Black - Male to Female - 400mA Max - 25cm Cable - Compatible with 12V Fans with Molex 3-pin Connector - Image 5](https://m.media-amazon.com/images/I/81JS19A2L+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ powers fan via sky box usb port
*by M***X on 4 January 2015*

It us what it is. I am using it to power a 120mm fan on my small comms cabinet. Taking power from the usb port on the back of my sky box. It comes with a resistor to step down the voltage to enable the fan to run slower. I am using this. Make sure that the fan you are using is capable at running at the lower voltage. Some will not and some may require a push with your fingers to get going

### ⭐⭐⭐⭐ Four Stars
*by M***R on 18 May 2015*

does what it says but extremely expensive

### ⭐⭐ Brilliant with low spec fans
*by E***R on 15 January 2017*

FAN2USB - 12V USB fan - Converting Adapter Brilliant and simple adapter to connect to a 3 pin 12v molex fan. Works fine with eather a USB 1A or 2.1A port. Currently running a 15 year old 80mm CPU cooling fan to keep a battery charger cool. Deffinatly well worth the cost. Update1: my first unit died after 18 months of hard use including a couple of trips to Belgium and was mainly used to quickly cool tea and to keep my radio gear cool. Update2: my second unit died after another year of hard use seems the resister overheated in the summer when using an Intel Cooler Master A46002-002 (Sanyo Denki 109R0612G4031) which is an amaizing fan. Update3: my most recent unit which was delivered yesterday didn't work full stop no output what so ever and the plus pin (pin 1) was bent so I did the next best thing I spliced an old cig socket cable onto a 4 pin Noctua 3 fan 30W controller turns out with 12V input you can't manually control fan RPM on the output so I hooked a 3 pin Gelid fan controller to the 4 pin out of the Noctua and job done I have full manual speed control currently cooling down my mid morning cup of tea using my trusty Intel fan so now the setup is a xiaomi 5000 MAh USB battery > USB to 12V step-up module with 5.5x2.1mm output > cig socket cable to 4 pin Noctua controller > 3 pin Gelid controller > Intel fan eventually I'll probably illimanate the Noctua controller and directly splice the Gelid to the cig cable but not seeing any voltage drop what so ever still getting exactly 12.0V on the output with fan at full throttle. These units are good for your bog standard case fan but could potentially fail under warm conditions if using higher current fans still within the spec of this cables 400 MA output and assuming you don't end up with a dud.

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-21*