---
product_id: 313816555
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: "651 DH"
currency: MAD
in_stock: true
reviews_count: 5
category: "Drok"
url: https://www.desertcart.ma/products/313816555-drok-usb-load-tester-electronic-load-test-resistor-module-25w
store_origin: MA
region: Morocco
---

# 25W max power output 0.25A-4A adjustable constant current Intelligent temp control 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:** 651 DH
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your testing game with precision and cool confidence!

## 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?** 651 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/313816555-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

- • **Dynamic Current Control:** Adjust current from 0.25A to 4A with ±(1%+3 digits) resolution for versatile testing scenarios.
- • **Precision Power Testing:** Accurately simulate loads up to 25W for reliable charger and cable diagnostics.
- • **User-Friendly Interface:** 4-digit LED display shows voltage, current, and power values clearly for instant insights.
- • **Smart Thermal Management:** Built-in temperature-controlled fan and aluminum heat sink prevent overheating during extended use.
- • **Robust Safety Protections:** Over-voltage, over-power, and over-temperature safeguards ensure device longevity and user peace of mind.

## Overview

The DROK USB Load Tester is a compact, high-performance electronic load module designed for professionals needing precise USB and Type-C charger and cable testing. Featuring adjustable constant current from 0.25A to 4A, a max power rating of 25W, and intelligent temperature-controlled cooling, it delivers reliable, real-time load simulation with comprehensive safety protections. Its clear LED display and precision potentiometer make it an essential tool for quality assurance in charging technology.

## Description

NOTE: This product has no reverse connection protection, the input polarity cannot be reversed, otherwise, the product is permanently damaged and cannot be repaired.Parameters: Rated operating voltage: DC 4-25.0V Max discharging power: 25W Rated operating current: 0.25-4.00A (when the fan doesn't work, the minimum constant current is 0.05A) Fan speed: Oil bearing intelligent temperature control fan, speed 5800±10%RPM Constant current resolution: ±(1%+3digits) Heat dispatch method: intelligent temperature control fan +Aluminum heat sink Working temperature: -10℃~+40℃ Adjustable potentiometer: precision multiloop adjustable potentiometer Display mode: 4 bit LED tube Expansion port: Micro USB port, Type-C port Product size: 84x41x28mmApplication Assist to test whether the Micro USB cable is good or not Assist to test whether the Type-C cable is good or not Assist to test output current capacity of the charger Package Including: 1x LD25 USB Digital Load Tester

Review: Funciona muy bien y es bastante preciso. Según las mediciones que he hecho, la corriente que se solicita sólo está desviada por 0.01A en mi unidad, lo cual es poco. Mi única observación es que el potenciometro esta un poco suelto, les faltó soldarlo completamente plano a la placa. Pero no tengo problemas, funciona excelente por el precio.
Review: The device works well however we can only achieve 17W for some reason. We have had to use additional loads to boost the amount for our testing to 25W which wasn't ideal.

## 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 |
| ASIN  | B07FL3PS57 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #79,614 in Computers ( See Top 100 in Computers ) #5,328 in USB Cables |
| Color | black |
| Customer Reviews | 4.6 4.6 out of 5 stars (251) |
| Customer reviews | 4.6 4.6 out of 5 stars (251) |
| Date First Available | 20 August 2018 |
| Date First Available  | 20 August 2018 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 0.28 g |
| Item model number | 200356 |
| Item model number  | 200356 |
| Manufacturer | DROK |
| Manufacturer  | DROK |
| Material | aluminum |
| Package Dimensions | 10.1 x 8.9 x 3.1 cm; 0.28 g |
| Package Dimensions  | 10.1 x 8.9 x 3.1 cm; 0.28 g |
| Part number | 200356 |
| Power source type | Corded Electric |
| Size | USB + Type-C port |
| Specification met | CE, RoHS |
| Style | Digital |

## Product Details

- **Brand:** DROK
- **Colour:** 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

### ⭐⭐⭐⭐⭐ Review
*by C***N on 13 January 2025*

Funciona muy bien y es bastante preciso. Según las mediciones que he hecho, la corriente que se solicita sólo está desviada por 0.01A en mi unidad, lo cual es poco. Mi única observación es que el potenciometro esta un poco suelto, les faltó soldarlo completamente plano a la placa. Pero no tengo problemas, funciona excelente por el precio.

### ⭐⭐⭐⭐ Review
*by M***K on 2 March 2023*

The device works well however we can only achieve 17W for some reason. We have had to use additional loads to boost the amount for our testing to 25W which wasn't ideal.

### ⭐⭐⭐⭐⭐ Review
*by D***E on 13 December 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.

## Frequently Bought Together

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-02-20*