OwlTree
2 Pack USB 5V to 12V 4 Pin Fan Speed Adapter Controller Supported PC Cooling Fan, Max 12V 8W Output (11.8inch)
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
Bottom line: The 2 Pack USB 5V to 12V 4 Pin Fan Speed Adapter Controller Supported PC Cooling Fan, Max 12V 8W Output (11.8inch) is a category leader on buyer feedback in the cooling & fans category, priced around $9.99, rated 5.0★ across 10 verified Amazon reviews. A confident buy for most shoppers in this category.
SpecPicks Verdict
SpecPicks classifies OwlTree 2 Pack USB 5V to 12V 4 Pin Fan Speed Adapter Controller… as a category leader on buyer feedback in the cooling & fans category, based on 10 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. OwlTree's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for cooling & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 5.0★ average across customer reviews
- ✓ Package Include: 2pcs Fan Speed Controller 11.8 inch
- ✓ Backed by OwlTree's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Input USB 5 V, Output DC 5-12V,Max Output 8W, ideal for Low-power 12 V fan speed controlling
- Compatibility Fan: 4Pin 12V Fan less than 8W (This is a 4-pin connector, but you can see only two wires are connected. The other two pins are empty because USB power only requires two lines)
- Material: 24AWG Tinned Copper Wire, tin-plated copper offers excellent resistance to corrosion and oxidation
- Easy to Use: Simply plug the USB into an adapter or computer, connect the 4-pin end to the fan, then turn on the switch and adjust the speed with the dial.
- Package Include: 2pcs Fan Speed Controller 11.8 inch
Full Specifications
| Brand | OwlTree |
|---|---|
| Model | PC102a |
| Voltage | 12 Volts |
| Wattage | 8 watts |
| Material | 24AWG Tinned Copper Wire, tin-plated copper offers excellent resistance to corrosion and oxidation |
| Unit Count | 2.0 Count |
| Easy to Use | Simply plug the USB into an adapter or computer, connect the 4-pin end to the fan, then turn on the switch and adjust the speed with the dial. |
| Part Number | PC102a |
| Connectivity | USB |
| Compatibility | PC, Switch |
| Cooling Method | Air |
| Number of Items | 1 |
| Number of Packs | 2 |
| Package Include | 2pcs Fan Speed Controller 11.8 inch |
Ready to buy?
OwlTree 2 Pack USB 5V to 12V 4 Pin Fan Speed Adapter Controller Supported PC Cooling Fan, Max 12V 8W Output (11.8inch) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-26. Price and availability subject to change.
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