---
product_id: 448293492
title: "Sqrgreat USB DC 5V to DC 9V Voltage Power Supply Cable - USB to 9V Cable with DC Jack 5.5 x 2.1mm, Tip Negative(-) Design, Max DC-5V-to-9V 0"
brand: "hizsoaor"
price: "₩35607"
currency: KRW
in_stock: true
reviews_count: 5
category: "Hizsoaor"
url: https://www.desertcart.kr/products/448293492-sqrgreat-usb-dc-5v-to-dc-9v-voltage-power-supply
store_origin: KR
region: South Korea
---

# Boosts USB 5V to 9V output 5.5x2.1mm DC plug size Built-in intelligent IC protection Sqrgreat USB DC 5V to DC 9V Voltage Power Supply Cable - USB to 9V Cable with DC Jack 5.5 x 2.1mm, Tip Negative(-) Design, Max DC-5V-to-9V 0

**Brand:** hizsoaor
**Price:** ₩35607
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Anywhere: Elevate your USB to 9V game with smart, safe, and sleek energy!

## Quick Answers

- **What is this?** Sqrgreat USB DC 5V to DC 9V Voltage Power Supply Cable - USB to 9V Cable with DC Jack 5.5 x 2.1mm, Tip Negative(-) Design, Max DC-5V-to-9V 0 by hizsoaor
- **How much does it cost?** ₩35607 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/448293492-sqrgreat-usb-dc-5v-to-dc-9v-voltage-power-supply)

## Best For

- hizsoaor enthusiasts

## Why This Product

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

## Key Features

- • **Smart Safety Circuitry:** Advanced IC chip guards against over-current, over-voltage, and short circuits for worry-free use.
- • **Seamless Voltage Boosting:** Transforms standard 5V USB power into a reliable 9V output, perfect for your essential gadgets.
- • **Perfect for Emergency Power:** Keep your WiFi router or USB fans running during outages by powering them from any 5V USB source.
- • **Universal 5.5x2.1mm DC Jack:** Fits a wide range of devices from speakers to routers with precision-engineered connectors.
- • **Compact & Portable Power Solution:** At just 4.9ft length and lightweight design, it’s your go-to cable for on-the-go power needs.

## Overview

The Sqrgreat USB DC 5V to DC 9V Voltage Power Supply Cable is a compact, reliable step-up converter cable designed to power 9V devices from a 5V USB source. Featuring a 5.5x2.1mm DC jack with negative tip polarity, it supports up to 1A current and includes built-in intelligent IC protection to safeguard your electronics. Ideal for powering small devices like routers, fans, and speakers, it’s a must-have for professionals seeking dependable, portable power solutions.

## Description

USB to DC Power Cable Cord, DC 5V to DC 9V USB Voltage Step Up Converter Cable, Power Supply Adapter Cable with DC Jack 5.5 x 2.1mm, Widely Used for Small Electronics and Devices which Use a 5.5mm Barrel Jack for a Power Cable, like Fan, Led Light, Wireless Router, Speakers and More Devices. Product Parameters: USB Input: 5V 2A DC Output: 9±0.5V, Max Current: 1A DC Plugs: 5.5 x 2.1mm, inner diameter 2.1mm, outer diameter 5.5mm Tips: negative center pin Support : Only for 5V devices, please check carefully the input specification of your device before purchase. Cable length: 4.9ft Package included: 1 Pack DC 5V to 9V USB 2.0 A Male to DC 5.5x2.1mm Power Supply Voltage Step Up Converter Cable Note: In the following cases, please choose other product. 1. Power > 9W. 2. Amp > 1A. 3. Polarity or port size mismatch. 4. Product connector not USB port. 5. Our charging cable can not charge laptops. 6. We will provides 12 month and 100% satisfying after-sales service, any questions please no hesitate to contact us How to check whether the DC plug is matched with the electrical DC input socket? As long as the voltage is the same, when the output voltage of the boosting wire is matched with the input voltage of the electrics, it works. And all electrics devices with current less than 1A also can be used. If you’re not sure the voltage and size of DC plug of your electronic, Please seek help from the electrical manufacturer.

Review: Was terrific for converting battery powered fan to USB.
Review: Works perfectly with a Samsung USB wall adapter to power a Strymon Cloudburst. It's center-negative so it works with most pedals right out of the box (bag); no polarity conversion required. Doesn't feel flimsy, but I wouldn't go yanking it out by the cable. Might not last as long if installed where its constantly being jostled. There are less expensive adapters that look identical, but most I saw were center-positive, and I was willing to pay ~$4 more to avoid the inconvenience of either using a polarity converter or re-soldering the leads. Make sure your USB power source has enough amps on the 5V side for the 9V power draw (roughly twice what you need on the 9V side).

## Features

- 【USB 5V to DC 9V Cable】Because the USB input is 5V 2A male, please make sure the current is 2A or the device may not work. The DC output is 9V and the max current is 1A. Note: NOT suitable for high current equipment.
- 【DC plugs specification】DC plugs specification: 5.5*2.1mm, Please check the connector sizes of your product before purchase.
- 【Widely used】Used for various devices that require 9V power with DC5.5 power interface, such as speakers, USB lights, USB fans, routers, set-top boxes, etc. Useful for powering the WiFi router via a power bank or other 5V power source during power outages. Can also be used with other devices that require a 9V power supply
- 【Safe & Reliable】built in upgraded intelligent IC circuit, our voltage adapter provides your devices perfect protection from over-current, over voltage, overload or short circuit.
- 【Packaging】1 Pack DC 5V to 9V USB 2.0 A Male to DC 5.5x2.1mm Power Supply Voltage Step Up Converter Cable.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09YR5WV2W |
| Best Sellers Rank | #15,827 in Computers ( See Top 100 in Computers ) #1,170 in USB Cables |
| Item model number | 9V |
| Manufacturer | Sqrgreat |
| Package Dimensions | 15.3 x 8.4 x 1.6 cm; 30 g |

## Product Details

- **Brand:** Hizsoaor
- **Cable type:** USB
- **Compatible devices:** Speaker
- **Connector type:** USB Type A
- **Special features:** Tangle Free

## Images

![Sqrgreat USB DC 5V to DC 9V Voltage Power Supply Cable - USB to 9V Cable with DC Jack 5.5 x 2.1mm, Tip Negative(-) Design, Max DC-5V-to-9V 0 - Image 1](https://m.media-amazon.com/images/I/61us3n3Ee6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***L on 23 October 2025*

Was terrific for converting battery powered fan to USB.

### ⭐⭐⭐⭐⭐ Review
*by P***N on 18 October 2024*

Works perfectly with a Samsung USB wall adapter to power a Strymon Cloudburst. It's center-negative so it works with most pedals right out of the box (bag); no polarity conversion required. Doesn't feel flimsy, but I wouldn't go yanking it out by the cable. Might not last as long if installed where its constantly being jostled. There are less expensive adapters that look identical, but most I saw were center-positive, and I was willing to pay ~$4 more to avoid the inconvenience of either using a polarity converter or re-soldering the leads. Make sure your USB power source has enough amps on the 5V side for the 9V power draw (roughly twice what you need on the 9V side).

### ⭐ Review
*by A***R on 5 November 2025*

Disappointing. It didn't work...just got very hot, so I can't use it.

## Frequently Bought Together

- Hizsoaor USB DC 5V to DC 9V Voltage Power Supply Cable - USB to 9V Cable with DC Jack 5.5 x 2.1mm, Tip Negative(-) Design, Max DC-5V-to-9V
- iGreely DC 5V to DC 9V USB Voltage Step Up Converter Cable 3.3ft/1m Power Supply Adapter Cable with DC Jack 5.5 x 2.5mm or 5.5 x 2.1mm, for Fan, Led Light, Wireless Router, Speakers and More Devices

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-15*