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JAENFONG PWM 12V USB Fan Step-Up Connector Cable 2Pack Full Speed 12V Step-Up USB to 3Pin/4Pin PC Fan Sleeved Power Adapter Cable

[12V Step-UP Circuit]Inside the USB housing is a voltage boost circuit that takes 5V and outputs up to 12V 0.4A for full power operation. Additional devices such as fan hubs and speed controller can also be used.
[Plug and Play]Easy to use, plug and play, no need for any installer or software.
[Better Construction]Our cables use all-black injection molded connectors and high-density black sleeves to minimize wire visibility and protect the core, and the braided wire body structure is not easy to break.
[Wide Compatibility]USB to Dual 3 Pin and 4 Pin PWM cables cool down a variety of electronic devices with USB power (gaming consoles, web applications, professional equipment, etc.) for a great DIY experience.
[Applications]It can be used to connect devices such as PC fans, fan hubs and speed controllers.

Overview

Specs

Reviews

Specifications:

Product Name: USB to 3-pin / 4-pin fan 12V Step-Up cable

Function: change the 5V USB port to small 3 pin / 4 pin port for electricity use

Connector: one is USB port, another one is small 3 pin / 4 pin case fan power adapter cable port

Cable Length: 30cm/11.8inch

Cable Type: 22AWG

Cable Diameter: 0.12inch

Insulation Material: PVC

Conductor Material: pure copper

Work temperature: 80 centigrade

Package Includes:

2pcs 12V USB to 3-Pin / 4-Pin fan Step-Up cables

Additional Information
First Listed on Newegg	September 23, 2026

Return for refund within: 30 days
Return for replacement within: non-replaceable
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Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.