---
product_id: 451505874
title: "USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V"
brand: "sqrgreat"
price: "₩20098"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/451505874-usb-to-9v-adapter-dc-5v-to-dc-9v-step
store_origin: KR
region: South Korea
---

# DC output 9V Cable length 4.9ft USB input 5V USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V

**Brand:** sqrgreat
**Price:** ₩20098
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Your Life with Style!

## Quick Answers

- **What is this?** USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V by sqrgreat
- **How much does it cost?** ₩20098 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/451505874-usb-to-9v-adapter-dc-5v-to-dc-9v-step)

## Best For

- sqrgreat enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Alloy plug ensures a stable connection, resisting oxidation and corrosion.
- • **Power Up Your Devices:** Transform your 5V USB power into a robust 9V output for versatile applications.
- • **Portable Power Solution:** Ideal for on-the-go use, power your devices with ease using a power bank.
- • **Universal Compatibility:** Perfect for powering fans, lamps, keyboards, and more—your go-to solution for diverse devices.
- • **Smart Protection Technology:** Equipped with an advanced IC chip for ultimate safety against overcurrent and short circuits.

## Overview

The USB to 9V Adapter is a versatile step-up cable that converts 5V USB power to a 9V output, making it perfect for a variety of devices such as fans, lamps, and audio equipment. With a length of 4.9ft, it features a durable alloy plug and built-in smart IC technology for enhanced safety and reliability.

## Description

Full description not available

## Features

- USB input 5V, DC output 9V, max current 800mAh, cable length 4.9ft
- USB DC 5V to DC 9V volt cable with Jack 5.5 x 2.1mm, positive (+) tip (refer to the second image), Please check if it fits in the power jack on your devices
- USB to 9V DC convert cable applicable equipment: Fan, Table Lamp, Piano Keyboard, Solar Panel, USB Power Pack, Power Adapter, Bluetooth Audio, Wireless Router, Speakers, also can be used to power the router via power bank if power down
- 5V to 9V usb voltage adapter has built-in upgraded smart IC chip, which provides perfect overcurrent, overvoltage, overload or short circuit protection for your equipment, safe and reliable
- The alloy plug is effectively resistant to oxidation and corrosion, which can bring you a stable connection during use.

## Product Details

- **Brand:** Sqrgreat
- **Connector Type:** USB Type A
- **Cable Type:** USB
- **Compatible Devices:** Router, Speaker
- **Special Feature:** Data Transfer

## Images

![USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V - Image 1](https://m.media-amazon.com/images/I/51YJejOqdVL.jpg)
![USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V - Image 2](https://m.media-amazon.com/images/I/61XmRt+s2-L.jpg)
![USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V - Image 3](https://m.media-amazon.com/images/I/61e4n7T9v-L.jpg)
![USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V - Image 4](https://m.media-amazon.com/images/I/61yPZkDEaCL.jpg)
![USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V - Image 5](https://m.media-amazon.com/images/I/51t86M5bXYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Muy útil
*by Y***A on July 15, 2025*

Muy bueno

### ⭐⭐⭐⭐⭐ Center + , works for me
*by I***H on April 6, 2025*

Either it will work or it won't, depending on your device's power jack size and polarity (center positive!). For me it works, so 5 stars. Great alternative to a bulky wall wart.

### ⭐ Oh No....
*by R***K on August 28, 2024*

Plugged it in to my usb power main and a small 3-watt speaker and it did not work. What it DID do after 2 minutes was start to melt on the usb end (the plastic that holds it). Fortunately, I pulled it out in time before it caused any real damage.

## Frequently Bought Together

- Sqrgreat USB to 9V Adapter - DC 5V to DC 9V Step Up Cable Cord with DC Jack 5.5 x 2.1mm for Fan, Table Lamp, Piano Keyboard, Bluetooth Audio, Wireless Router, Speakers & More(4.9ft) DC-5V-to-9V
- iGreely USB Voltage Step Up Converter - DC 5V to 12V, 3ft Cable with DC Jack 5.5 x 2.5mm or 5.5 x 2.1mm

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**Shop now:** [https://www.desertcart.kr/products/451505874-usb-to-9v-adapter-dc-5v-to-dc-9v-step](https://www.desertcart.kr/products/451505874-usb-to-9v-adapter-dc-5v-to-dc-9v-step)

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