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Black USB-A to 5.5×2.1mm DC step-up cable, 1m length

Vszerda

Vszerda USB 5V to 9V Step-Up Cable 5.5×2.1mm 1m 800mAh

SKU CH-2P9B-A67SC

Converts 5 V USB power to 9 V DC via a 5.5×2.1 mm plug with short-circuit protection

  • Connection typeUsb
  • Connector count6
  • Connector detailsUsb
  • Connector genderMale-to-Male
  • Build detailsCopper
  • Product typeUSB
  • Powers 9 V devices from a 5 V USB source
  • Built-in IC guards against over-current, over-voltage and short circuits
  • Thick copper core cuts transmission loss by 20 %
  • Runs below 40 °C under normal load for safer use
  • 1 m cable with 5.5 × 2.1 mm DC plug fits many routers, fans and speakers

What this cable does

The Vszerda USB step-up cable converts a 5 V USB source into a 9 V DC output through a 5.5 × 2.1 mm barrel plug. It is intended for users who need to run 9 V equipment such as fans, LED lights, routers or speakers from a standard USB port or power bank.

Check your power source

The USB input must supply at least 5 V 2 A to reach the rated 800 mAh output current. Verify that your port or power bank can deliver that current and that the device you are powering uses a 5.5 × 2.1 mm centre-positive connector.

Built-in protection and efficiency

The cable includes short-circuit protection and an upgraded IC that guards against over-current, over-voltage and overload. A copper core reduces transmission loss by 20 % and keeps the operating temperature below 40 °C during normal use.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 80% of the 15,227 comparable items (median $14.99).

Specifications

Product
Brand nameVszerda
Product typeUSB
Ports & slots
Connection typeUsb
Connector count6
Connector detailsUsb
Connector genderMale-to-Male
Size & build
Build detailsCopper

Questions about this item

What comes in the box and do I need any extra parts?

The package includes the step-up cable with a USB-A plug on one end and a 5.5×2.1mm DC plug on the other. You must supply a 5V USB power source capable of at least 2A, such as a power bank or wall charger.

How do I decide which version or capacity to choose?

This cable provides a fixed 9V output at up to 800mA. Choose it only if your device needs exactly 9V and draws no more than 800mA; otherwise a different voltage or current rating is required.

What does the 800mA rating mean when the cable is powering my device?

It is the maximum continuous current the converter can deliver at 9V. If your equipment draws less than 800mA it will run normally; if it tries to draw more the built-in short-circuit protection will shut the output down.

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