---
product_id: 227740909
title: "Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty]"
brand: "goldsource"
price: "C$22180"
currency: NIO
in_stock: false
reviews_count: 9
url: https://www.desertcart.ni/products/227740909-goldsource-3000w-st-pro-auto-step-up-and-step-down
store_origin: NI
region: Nicaragua
---

# 3000W max load DC 5V USB port Universal AC outlets Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty]

**Brand:** goldsource
**Price:** C$22180
**Availability:** ❌ Out of Stock

## Summary

> Transform Your Power Game! ⚡

## Quick Answers

- **What is this?** Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty] by goldsource
- **How much does it cost?** C$22180 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/227740909-goldsource-3000w-st-pro-auto-step-up-and-step-down)

## Best For

- goldsource enthusiasts

## Why This Product

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

## Key Features

- • **🚀 Easy Operation:** Built-in soft-start circuit prevents inrush current, ensuring smooth startup.
- • **💡 High Efficiency:** Achieves 90%-95% efficiency with a lightweight, portable toroidal transformer.
- • **🔧 Upgraded Design:** Enhanced US socket & universal compatibility for all your devices.
- • **🏠 Ideal for Home Use:** Perfect for high-demand appliances like rice cookers, mixers, and more.
- • **🌍 Versatile Voltage Selection:** Choose from 4 input voltages: 110V, 200V, 220V, 240V.

## Overview

The Goldsource 3000W ST Pro+ Voltage Transformer is an upgraded, heavy-duty converter designed for seamless voltage conversion between 110V and 220V. With universal AC outlets, a DC 5V USB port, and a robust 3000-watt capacity, it’s perfect for powering a variety of household appliances efficiently and safely.

## Description

desertcart.com: Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty] : Electronics

Review: Works as advertised. - Product arrived quick. I've used the step up transformer for about 3 hours and it definitely works as advertised. Good simple instructions come with the unit. I don't have a way to test it for how many watts it puts out at this time. Would definitely recommend to this point.
Review: Works great - Needed a step-up/down converter for a ps5 I bought in the UK (back in US now) this one was highly rated and it works like a charm. Great value, definitely be sure to give yourself wiggle room with wattage, went with 1000w but will never even come close to half that, I heard it helps with longevity though.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08DG6Y9F9 |
| Best Sellers Rank | #792,014 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,685 in Power Converters |
| Customer Reviews | 4.1 4.1 out of 5 stars (83) |
| Date First Available | January 24, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 17.82 pounds |
| Item model number | ST Pro+ |
| Manufacturer | Goldsource |
| Product Dimensions | 13 x 9 x 8 inches |

## Product Details

- **Brand:** Goldsource
- **Current Rating:** 3 Amps
- **Mounting Type:** Surface Mount
- **Power Source:** Corded Electric
- **Specification Met:** FCC, UL

## Images

![Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty] - Image 1](https://m.media-amazon.com/images/I/311lkATHV9L.jpg)
![Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty] - Image 2](https://m.media-amazon.com/images/I/41Ckh3KVqSL.jpg)
![Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty] - Image 3](https://m.media-amazon.com/images/I/41wBbd5-MNL.jpg)
![Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty] - Image 4](https://m.media-amazon.com/images/I/51FGrAe9qAL.jpg)
![Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty] - Image 5](https://m.media-amazon.com/images/I/51cX-hrJcVL.jpg)

## Questions & Answers

**Q: Will this unit convert a single phase 240v generator output (center tap ground) to 120v?**
A: Yes

**Q: Will it be safe for a 120v.  550w appliance ?**
A: The 1000W transformer is likely fine, but note that some devices (like laser printers) draw a lot of power when they first start up (sometimes 2 or 3 times listed power draw( and you need to allow for that.

**Q: where can I purchase fuses for the transformer?**
A: Very giid

**Q: will this work on 1750w air fryer?**
A: It should be work.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as advertised.
*by M***S on September 19, 2025*

Product arrived quick. I've used the step up transformer for about 3 hours and it definitely works as advertised. Good simple instructions come with the unit. I don't have a way to test it for how many watts it puts out at this time. Would definitely recommend to this point.

### ⭐⭐⭐⭐⭐ Works great
*by C***R on July 6, 2024*

Needed a step-up/down converter for a ps5 I bought in the UK (back in US now) this one was highly rated and it works like a charm. Great value, definitely be sure to give yourself wiggle room with wattage, went with 1000w but will never even come close to half that, I heard it helps with longevity though.

### ⭐⭐⭐⭐⭐ Works like a charm
*by B***K on November 7, 2020*

Bought it for my appliance from China, Worked like a charm. Very well designed and made, plug feels solid, no odd smell or noise. Highly recommended.

## Frequently Bought Together

- Goldsource 3000W ST Pro+ Auto Step Up & Step Down Voltage Transformer Converter, Upgraded Heavy-Duty AC 110/220V Converter with US Standard, Universal AC Outlets & DC 5V USB Port [3-Year Warranty]
- Yinleader 1500W Step Up & Step Down Voltage Transformer Converter 110V to 220V or 220V/230V/240V to 110V/120V Power Converter w/US Power Cord,Circuit Breaker Protection

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-15*