USB LED Dimmer & Speed Controller Extension Cable with Knob
USB LED Dimmer & Speed Controller Extension Cable with Knob
USB LED Dimmer & Speed Controller Extension Cable
Take full control of your USB-powered devices with this compact and versatile USB LED Dimmer & Speed Controller Extension Cable. Whether you're adjusting the brightness of your USB LED light or fine-tuning the speed of a USB desk fan, this clever inline controller gives you smooth, instant adjustments right at your fingertips — no extra software or batteries required.
Featuring an easy-to-use rotary knob switch, this extension cable lets you dial in the perfect brightness or fan speed with precision. Its upgraded design helps protect your USB port from wear and tear by routing power through the cable's built-in switch, extending the life of both your port and your devices.
Key Features
- 2-in-1 Control: Adjusts both LED light brightness and USB fan speed with a single knob
- Inline Knob Switch: Smooth rotary dial for stepless brightness and speed adjustment
- USB Port Protection: Power switch prevents repeated plug/unplug wear on your USB port
- Wide Compatibility: Works with USB desk fans, USB ceiling fans, USB LED lights, and other USB-powered devices
- Durable Construction: High-quality plastic housing built for long-lasting use
- Compact Size: Approx. 27 cm (10.63 inches) in length — easy to place on any desk or table
- Available in Black or White to suit your setup
Specifications
| Material | Plastic |
| Color | Black / White |
| Length | Approx. 27 cm / 10.63 inches |
| Type | USB Adapter / Inline Dimmer Controller |
| Battery Required | No |
| Country of Origin | Made in China |
What's in the Box
- 1 × USB LED Knob Dimmer & Speed Controller Extension Cable
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Note: Please allow ±1–2 cm variance due to manual measurement. Colors may vary slightly from images depending on your monitor settings.
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Frequently Asked Questions
Q: What USB devices are compatible with this USB LED dimmer and speed controller cable?
A: This USB dimmer and speed controller extension cable is compatible with a wide range of USB-powered devices, including USB desk fans, USB ceiling fans, USB LED strip lights, USB reading lamps, and other standard USB-powered accessories. It works with any device that draws power via a standard USB connection and supports variable voltage input.
Q: Does this USB speed controller require any batteries or additional power source?
A: No, this USB controller cable does not require any batteries or separate power source. It connects directly between your USB power supply (such as a USB wall adapter, power bank, or PC USB port) and your USB device, drawing all the power it needs from the USB connection itself.
Q: Can the brightness or fan speed be adjusted continuously, or only in fixed steps?
A: The rotary knob on this USB dimmer controller allows for smooth, stepless (continuous) adjustment of brightness or fan speed. Simply turn the knob clockwise or counterclockwise to set your desired level anywhere between the minimum and maximum range, giving you precise and flexible control over your USB device.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.