Smart Deals Picks
USB 5V to 9V/12V Step-Up Power Converter Cable
USB 5V to 9V/12V Step-Up Power Converter Cable
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Flat $4.95 shipping, free over $50
Flat $4.95 shipping, free over $50
Every order ships for a flat $4.95. Spend $50 or more and shipping is free. Shipping is calculated at checkout before you pay.
Delivered in 5 to 14 business days
Delivered in 5 to 14 business days
We pack in 1 to 3 business days. Transit takes another 4 to 11. Business days are Monday to Friday, excluding US public holidays.
30-day returns, sale items included
30-day returns, sale items included
Thirty days from delivery to ask for a return. Sale items count, and there is no restocking fee. Read the full Refund and Return Policy.
Run small 9V and 12V gear straight from a USB port or power bank.
This cable uses a built-in DC-DC step-up module to raise a standard 5V USB output to a stable 9V or 12V DC, depending on the device or configuration. One end is a standard USB plug for laptops, power banks, and USB wall adapters; the other is a 2.1 x 5.5 mm DC barrel plug, a common size for small electronics like routers, mini speakers, and LED devices. The module is in-line, so the whole thing stays tidy.
Why we picked it
- Fewer adapters - Powers 9V/12V devices from the USB sources you already carry.
- Common connector - The 2.1 x 5.5 mm barrel plug fits a lot of small gear.
- Travel-friendly - Compact in-line design tucks into a bag or toolkit.
Good to know
It is built for low-power 9V/12V devices within the module's rated current and voltage. For best results, use a USB source that supplies enough current (for example, 2A or higher). Always confirm the output voltage and your device's requirements before connecting. It is not made for high-current or large appliances.
Common questions
Q: What can I use it with?
A: Many low-power 9V or 12V devices with a 2.1 x 5.5 mm barrel plug, such as some mini routers, LED devices, or small audio gear. Check voltage and current needs first.
Q: Can I plug it into any USB port?
A: Power banks, laptop USB ports, and USB wall chargers all work. For best performance use a source rated 2A or higher.
Q: Does it do both 9V and 12V automatically?
A: The module steps up to either 9V or 12V depending on the model or configuration. Confirm the output before connecting.
Q: Is it for high-power equipment?
A: No. It is for low-power electronics within the USB source and module's safe range only.
