SMUGDESK USB 5V to 9V/12V Boost Cable 5.5x2.1mm
Converts USB 5 V to 9 V or 12 V DC via a 5.5×2.1 mm plug with built-in protection
- Converts 5 V USB to 9 V or 12 V DC for wider device use
- Standard 5.5×2.1 mm DC plug fits most matching equipment
- Built-in protection guards against over-voltage, over-current and short circuits
- Draws power from any USB port, power bank or charger
- Compact all-in-one cable needs no extra assembly, ideal for portable use
Purpose and audience
This USB step-up cable converts a 5 V USB port into a 9 V or 12 V DC supply for small electronics. It suits technicians and hobbyists who need portable power for routers, cameras or LED strips from a power bank or laptop. Not for devices that require higher current than a standard USB source can deliver. Not for equipment with a different barrel size or voltage requirement.
Key specification
The cable outputs either 9 V or 12 V DC through a 5.5 mm by 2.1 mm male barrel plug. Selecting the correct voltage is the single factor that determines whether the connected device will operate safely.
Installation and pitfalls
Plug the USB end into any 5 V port and the barrel into the device; no drivers or soldering are needed. The integrated boost module includes short-circuit, over-voltage and over-temperature protection. The most common mistake is powering a load that draws more current than the USB host can supply, which triggers the protection and shuts the output down.
How it compares
Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.
- Price $15.99
- Cheaper than about 80% of the 3,875 comparable items (median $23.99).
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Specifications
No published specifications for this item yet.
Questions about this item
What output voltages can the boost cable deliver to my device?
The built-in module steps the USB 5 V input up to either 9 V or 12 V DC, selectable for the connected equipment.
Which USB power sources can I use to run the converter?
Any standard USB port — power bank, laptop, wall charger or similar — supplies the 5 V input the module needs.
What size DC plug does the cable terminate in for the device side?
A 5.5 mm outer diameter by 2.1 mm inner diameter male barrel connector.
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