---
product_id: 51860457
title: "Step Up Voltage Converter 5V to 9V/12V USB to 2.1mm DC Booster Cable 1.2M (9V)"
brand: "uniquers"
price: "€ 1.14"
currency: EUR
in_stock: false
reviews_count: 2
url: https://www.desertcart.pt/products/51860457-step-up-voltage-converter-5v-to-9v-12v-usb-to
store_origin: PT
region: Portugal
---

# 5V to 9V/12V boost 1.2m length USB to 2.1mm DC Step Up Voltage Converter 5V to 9V/12V USB to 2.1mm DC Booster Cable 1.2M (9V)

**Brand:** uniquers
**Price:** € 1.14
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Elevate Your Power Game!

## Quick Answers

- **What is this?** Step Up Voltage Converter 5V to 9V/12V USB to 2.1mm DC Booster Cable 1.2M (9V) by uniquers
- **How much does it cost?** € 1.14 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/51860457-step-up-voltage-converter-5v-to-9v-12v-usb-to)

## Best For

- uniquers enthusiasts

## Why This Product

- Trusted uniquers brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🌟 Compact & Portable:** Lightweight design makes it easy to carry for on-the-go power solutions.
- • **🔋 Power Up Your Devices:** Transform your 5V USB power into a robust 9V or 12V output effortlessly.
- • **🔌 Universal Compatibility:** Easily connect to a variety of devices with the standard 2.1mm DC connector.
- • **⚡ Efficient Voltage Conversion:** Experience reliable performance with minimal energy loss during conversion.
- • **📏 Perfect Length for Flexibility:** At 1.2 meters, enjoy the freedom to connect your devices without being tethered.

## Overview

The Step Up Voltage Converter is a versatile 5V to 9V/12V USB to 2.1mm DC booster cable, measuring 1.2 meters in length, designed to enhance your device's power capabilities with efficiency and ease.

## Description

This cable is kinda fascinating - it has an integrated boost converter, so you can plug it into any USB port (from a computer, battery pack, etc) and it will give you a higher DC voltage! It's a handy way to power 9V powered devices with a center-positive 2.1mm DC barrel jack from a USB port. We also have a version that provides 12V, and if you just need a passthough cable, here's one for 5VDC. These are rated at 500mA output, but you can go a little higher, we pulled 700mA and we got a little voltage droop but it worked fine. Probably best not to draw 700mA continuously though! Here's our measurements for various current draws when we set our bench supply to provide a steady 5V voltage 50mA (9.0V output), 100mA, 90% efficiency 100ma (8.95), 205mA in, 87% efficiency 200ma (8.9V): 410mA in, 86% efficiency 300ma (8.8V): 620mA in, 85% efficiency 500ma (8.8V): 1060mA in, 83% efficiency 700ma (8.8V): 1550mA in, 80% efficiency So, overall there's a 90% efficiency at low current draw that drops do about 80% at high current use. There's also a 3 mA quiescent current. Note that often times the USB port voltage can droop too, and in addition you may have power losses with any thin or low quality cables with high resistivity!

## Features

- 5V to 9V
- Cable Length: ~1.2m / ~47"

## Images

![Step Up Voltage Converter 5V to 9V/12V USB to 2.1mm DC Booster Cable 1.2M (9V) - Image 1](https://m.media-amazon.com/images/I/51ecHVMm24L.jpg)

## Customer Reviews

### ⭐⭐⭐ Three Stars
*by S***7 on November 20, 2017*

It worked powering my Sony A7 with one battery but not with another.

### ⭐⭐⭐⭐⭐ Quality Cable!
*by S***I on March 18, 2018*

I connect my fan to my battery bank everyday i work and it works flawlessly, really happy to have found this cable!

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/51860457-step-up-voltage-converter-5v-to-9v-12v-usb-to](https://www.desertcart.pt/products/51860457-step-up-voltage-converter-5v-to-9v-12v-usb-to)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-19*