---
product_id: 83143574
title: "DROK USB Load Tester, Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control with Cooling Fan"
brand: "drok"
price: "€ 32.78"
currency: EUR
in_stock: true
reviews_count: 8
category: "Drok"
url: https://www.desertcart.at/products/83143574-drok-usb-load-tester-electronic-load-test-resistor-module-25w
store_origin: AT
region: Austria
---

# 25W max power load 0.25A-4A adjustable current Intelligent temp control + cooling fan DROK USB Load Tester, Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control with Cooling Fan

**Brand:** drok
**Price:** € 32.78
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your testing game with precision and protection!

## Quick Answers

- **What is this?** DROK USB Load Tester, Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control with Cooling Fan by drok
- **How much does it cost?** € 32.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/83143574-drok-usb-load-tester-electronic-load-test-resistor-module-25w)

## Best For

- drok enthusiasts

## Why This Product

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

## Key Features

- • **Dual USB Compatibility:** Supports both USB-A and USB-C for modern device testing needs
- • **Robust Safety Features:** Over-voltage, overpower & temperature protections prevent damage
- • **Precision Power Testing:** Adjustable 0.25A-4A current for versatile USB load simulation
- • **Smart Thermal Management:** Built-in cooling fan with over-temp protection keeps device stable
- • **Real-Time Digital Display:** Clear 4-digit LED shows voltage, current & power simultaneously

## Overview

The DROK USB Load Tester is a professional-grade electronic load module designed for accurate USB charger and cable testing. It supports adjustable constant current from 0.25A to 4A, handles up to 25W power, and features intelligent temperature control with a cooling fan. Its clear digital display provides real-time voltage, current, and power readings, while built-in protections ensure safe operation. Compatible with USB-A and USB-C, it’s ideal for verifying charger performance, cable quality, and power delivery profiles.

## Description

DROK USB Load Tester, Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control with Cooling Fan: desertcart.com: Industrial & Scientific

Review: Professional-Grade USB Testing Made Easy - Incredibly Accurate and Reliable! - This DROK USB Load Tester is an essential tool for anyone who works with USB devices or wants to verify their chargers and cables are performing correctly! The adjustable constant current feature from 0.25A to 4A makes it incredibly versatile - I've been able to test everything from low-power accessories to high-output fast chargers. The dual interface compatibility with both standard USB and Type-C is perfect for modern testing needs since everything is transitioning to USB-C. The build quality is solid, and the controls are intuitive and easy to adjust. I've used it to identify faulty cables and chargers that were delivering inconsistent power, which has saved me from potential device damage. The intelligent temperature control with the built-in cooling fan is a brilliant feature that really sets this apart from cheaper testers. Even when running sustained 25W tests, the unit stays cool and stable. The display is clear and easy to read, giving me accurate real-time readings of voltage and current. This has become an indispensable part of my testing toolkit - whether I'm verifying new charging equipment, troubleshooting power delivery issues, or just satisfying my curiosity about how well my chargers actually perform. For the price, you get professional-grade testing capabilities that are normally found in much more expensive equipment. If you're serious about electronics, charging infrastructure, or just want peace of mind about your power sources, this is an outstanding investment.
Review: Reliable for PD Verification and Power Diagnostics - Excellent for checking USB-C Power Delivery profiles and sustained load output. Useful for confirming voltage steps (5V/9V/15V/20V), monitoring amperage draw, and validating cable capability. The data accumulation feature is helpful for longer testing sessions. Small form factor but still very capable. Great addition for anyone who likes understanding their power setup in detail.

## Features

- What is it: it is a USB intelligent temperature control electronic load; with high power, high current, high voltage and intelligent control features.
- Easy Opeartion: set the load to resume normal operation manually or automatically after releasing the protection condition; can freely set the boot state to be on or off by default; 4-bit led digital display; check the load voltage value / current value / power value; intelligent temperature control cooling fan; Precision adjustable potentiometer; Over-voltage protection / overpower protection / over temperature protection.
- Protection Function: OVP overvoltage protection (25V-30V overvoltage protection, digital display OVP, permanent damage after more than 30V); OPP over-power protection (load temperature is greater than 80 °C, the device stops working, digital display OTP); OTP over-temperature protection (power greater than 25W, equipment stops working, digital display OPP).
- Application: can provide 4A, 25V, 25W (3 values can not used over range) constant current test discharge task. The friendly human-computer interface and excellent performance indicators can meet the diverse testing needs. It is suitable for measuring the output current capability of the charger, using the bulk aging test of the charger factory, and measuring the quality of the Micro USB charging cable and the Type-C charging cable.
- Note: the usb tester module has no reverse connection protection, the input polarity cannot be reversed, otherwise the product is permanently damaged and cannot be repaired.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FL3PS57 |
| Brand | DROK |
| Brand Name | DROK |
| Color | black |
| Customer Reviews | 4.7 out of 5 stars 281 Reviews |
| Item Weight | 0.01 Ounces |
| Manufacturer | DROK |
| Measurement Type | Ammeter |
| Min. Operating Voltage | 4 Volts |
| Minimum Operating Voltage | 4 Volts |
| Model | 200356 |
| Power Source | Corded Electric |
| Style | Digital |
| Style Name | Digital |
| UPC | 701822755900 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 40 Degrees Celsius |

## Product Details

- **Brand:** DROK
- **Color:** black
- **Item Weight:** 0.01 Ounces
- **Power Source:** Corded Electric
- **Style:** Digital

## Images

![DROK USB Load Tester, Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control with Cooling Fan - Image 1](https://m.media-amazon.com/images/I/71nN0nLE8yL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Professional-Grade USB Testing Made Easy - Incredibly Accurate and Reliable!
*by D***E on December 13, 2025*

This DROK USB Load Tester is an essential tool for anyone who works with USB devices or wants to verify their chargers and cables are performing correctly! The adjustable constant current feature from 0.25A to 4A makes it incredibly versatile - I've been able to test everything from low-power accessories to high-output fast chargers. The dual interface compatibility with both standard USB and Type-C is perfect for modern testing needs since everything is transitioning to USB-C. The build quality is solid, and the controls are intuitive and easy to adjust. I've used it to identify faulty cables and chargers that were delivering inconsistent power, which has saved me from potential device damage. The intelligent temperature control with the built-in cooling fan is a brilliant feature that really sets this apart from cheaper testers. Even when running sustained 25W tests, the unit stays cool and stable. The display is clear and easy to read, giving me accurate real-time readings of voltage and current. This has become an indispensable part of my testing toolkit - whether I'm verifying new charging equipment, troubleshooting power delivery issues, or just satisfying my curiosity about how well my chargers actually perform. For the price, you get professional-grade testing capabilities that are normally found in much more expensive equipment. If you're serious about electronics, charging infrastructure, or just want peace of mind about your power sources, this is an outstanding investment.

### ⭐⭐⭐⭐⭐ Reliable for PD Verification and Power Diagnostics
*by R***A on February 17, 2026*

Excellent for checking USB-C Power Delivery profiles and sustained load output. Useful for confirming voltage steps (5V/9V/15V/20V), monitoring amperage draw, and validating cable capability. The data accumulation feature is helpful for longer testing sessions. Small form factor but still very capable. Great addition for anyone who likes understanding their power setup in detail.

### ⭐⭐⭐⭐⭐ Usb load testing.
*by S***C on February 8, 2026*

For testing usb devices this thing kicks butt. Its led readout is fairly close on amperage limits and the fan will kick on auto at a certain temp or above a certain wattage. Used with a usb meter i was able to test usb a and c-pd (using the A port on meter) chargers from 5v to 20v. Its really good for testing voltage drop from chargers and cables.

## Frequently Bought Together

- DROK USB Load Tester, Electronic Load Test Resistor Module 25W LD25 USB and Type C Interface Discharge Adjustable Constant Current 0.25A-4A Intelligent Temperature Control with Cooling Fan
- Eversame 2 in 1 Type C USB Tester Color Screen LCD Digital Multimeter, USB C Voltage Current Voltmeter Amp Volt Ammeter Detector USB Cable Charger Indicator DC3.6-30V/0-5.1A
- Treedix USB Cable Tester Board USB Cable Checker Data Wire with Acrylic Case Charging Test Data Line Type-C Micro Type A Type B

---

## 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.at/products/83143574-drok-usb-load-tester-electronic-load-test-resistor-module-25w](https://www.desertcart.at/products/83143574-drok-usb-load-tester-electronic-load-test-resistor-module-25w)

---

*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-22*