---
product_id: 372189946
title: "PortaPow USB Power Blocker - Stops Charging, Allows Data (Twin Pack)"
brand: "portapow"
price: "$561"
currency: MXN
in_stock: true
reviews_count: 8
url: https://www.desertcart.mx/products/372189946-portapow-usb-power-blocker-stops-charging-allows-data-twin-pack
store_origin: MX
region: Mexico
---

# USB 2.0 data transfer enabled 5V power line blocked Specialist device compatibility PortaPow USB Power Blocker - Stops Charging, Allows Data (Twin Pack)

**Brand:** portapow
**Price:** $561
**Availability:** ✅ In Stock

## Summary

> 🔌 Data flows, power stops—control your USB connections like a pro!

## Quick Answers

- **What is this?** PortaPow USB Power Blocker - Stops Charging, Allows Data (Twin Pack) by portapow
- **How much does it cost?** $561 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/372189946-portapow-usb-power-blocker-stops-charging-allows-data-twin-pack)

## Best For

- portapow enthusiasts

## Why This Product

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

## Key Features

- • **Twin Pack Value:** Double the protection and convenience for your tech setups
- • **Clear Compatibility Notes:** Designed for niche use—check device compatibility to avoid surprises
- • **Specialist Device Friendly:** Ideal for 3D printers, Raspberry Pi, and other sensitive hardware
- • **Power Blocked, Data Allowed:** Seamlessly stops charging while maintaining full USB 2.0 data flow
- • **Prevents Unwanted Power Effects:** Avoids damage or interference caused by power supply during data transfer

## Overview

The PortaPow USB Power Blocker twin pack is a USB-A male-to-female adapter that disables the 5V power line while allowing full USB 2.0 data transfer. Perfect for specialist applications such as 3D printers and Raspberry Pi devices where power delivery can cause issues, this product ensures data integrity without charging. Note: not compatible with most smartphones and tablets.

## Description

Cased Power Blocker.

## Features

- This is NOT a data blocker, see PortaPow's other products if that is what you need
- This a USB-A male to female adaptor which has the D+, D- and 0V connected but the 5V disconnected, so power cannot pass through.
- Useful for specialist applications such as 3D Printers and Raspberry Pi where providing power results in undesirable effects
- Note a power blocker is not compatible with smartphones, tablets and many other devices. Please read the reviews to see situations where it does and does not work.
- Extra Value Twin Pack. Supports USB 2.0 Data Transfer.

## Product Details

- **Brand:** PortaPow
- **Connector Type:** USB
- **Compatible Devices:** 3D Printers
- **Compatible Phone Models:** Incompatible with phones
- **Special Feature:** Stops Charge
- **Color:** Black
- **Input Voltage:** 5 Volts
- **Total USB Ports:** 1
- **Wattage:** 10 watts
- **Number of Items:** 2

## Images

![PortaPow USB Power Blocker - Stops Charging, Allows Data (Twin Pack) - Image 1](https://m.media-amazon.com/images/I/61uKgCm29bL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Essential Protection for Your Devices!
*by P***R on May 24, 2024*

I recently started using the PortaPow USB Power Blocker with my micro USB cable for my 3D printer, and I have to say, it's been a game-changer!This little gadget does an excellent job of preventing my printer from pulling too much power from my sonic pad, which could potentially damage it. It stops charging while still allowing data transfer, ensuring that my devices stay safe and sound.Installation was a breeze - I simply plugged it in between my printer and the sonic pad, and it started working right away. Plus, it's super compact, so it doesn't take up much space.Overall, I'm incredibly impressed with the PortaPow USB Power Blocker. It's a simple yet effective solution that gives me peace of mind knowing that my devices are protected. Five stars from me!

### ⭐⭐⭐⭐⭐ Perfectly adequate to my needs
*by S***O on September 11, 2023*

I have purchased a twin pack of PortaPow blockers because I needed to connect an old, self-powered, device to my PC with a USB-A to USB-A cable and couldn't afford the risk of short-circuiting anything. I could modify the cables, but I'm not very good with that kind of skill. Fortunately I've found these on Amazon. I've been told that using a single blocker on the cable would be enough, but it works fine with both too. Data goes through flawlessly while power stays put.Just clarifying for those in doubt: this product is meant to block power, not data transfers! If you're looking for a data blocker, I believe the same company also provides those, but this isn't the same thing.

### ⭐⭐⭐⭐⭐ Great for connecting my Ender 3 to a Pi running OctoPrint!
*by J***R on July 24, 2024*

I always disliked having my Pi Zero 2 W backpower my Ender 3 when I had turned the printer off, and this solved that issue quick and easy. Same deal with a 3018 Pro CNC. It’s a simple fix and probably wildly overpriced for what it is, but no fuss and it just works!

## Frequently Bought Together

- PortaPow USB Power Blocker - Stops Charging, Allows Data (Twin Pack)
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**Shop now:** [https://www.desertcart.mx/products/372189946-portapow-usb-power-blocker-stops-charging-allows-data-twin-pack](https://www.desertcart.mx/products/372189946-portapow-usb-power-blocker-stops-charging-allows-data-twin-pack)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-27*