# Micro Traders 3pcs USB Fan Speed Controller 5W USB Fan Stepless Speed Controller DC 5V Stepless Mini USB Fan Governor DC 4-12V to 2.5-8V 5W Regulator Speed Control Knob with Switch — resale value

Source: JunkPal price guide — https://junkpal.ai/products/micro-traders-3pcs-usb-fan-speed-controller-5w-usb-fan-stepless-speed--b09tzwwrk4

**Micro Traders 3pcs USB Fan Speed Controller 5W USB Fan Stepless Speed Controller DC 5V Stepless Mini USB Fan Governor DC 4-12V to 2.5-8V 5W Regulator Speed Control Knob with Switch** sells for about **$7.89** new or sealed, based on real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/micro-traders-3pcs-usb-fan-speed-controller-5w-usb-fan-stepless-speed--b09tzwwrk4

## Value

| Condition | Value (USD) |
| --- | --- |
| New / Sealed | $7.89 |

Values are medians of real closed eBay sales, updated 2026-07-16. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DMicro%2520Traders%2520USB%2520Fan%2520Speed%2520Controller%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DMicro%2520Traders%2520USB%2520Fan%2520Speed%2520Controller%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| Brand | Micro Traders |
| Category | Computers |

## About

This is a 3-piece USB Fan Speed Controller from Micro Traders. It functions as a 5W USB Fan Stepless Speed Controller, capable of regulating DC input from 4-12V down to 2.5-8V using a speed control knob and switch.

This device is ideal for hobbyists, DIY electronics enthusiasts, and computer builders needing precise fan speed management for various small fans.

Resale value is determined by the condition of the units, whether the complete set of three is present, and the overall functionality of the speed control mechanism.

## FAQ

**What is the primary function of this controller?**

It regulates the speed of a DC fan using a knob and switch, stepping down input voltage from 4-12V to 2.5-8V.

**Is this item sold individually or as a set?**

The product is listed as a 3-piece set.

**What factors affect the resale value of this controller?**

Resale value depends on the physical condition of the units and whether the complete set is available.

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Full price guide: https://junkpal.ai/products/micro-traders-3pcs-usb-fan-speed-controller-5w-usb-fan-stepless-speed--b09tzwwrk4
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-07-16, based on real sold listings (junkpal.ai)"