---
product_id: 739980170
title: "PortaPow USB Power Blocker - Stop Charging and Support Data (Single Pack)"
brand: "portapow"
price: "€ 1719.24"
currency: EUR
in_stock: true
reviews_count: 5
category: "Porta Pow"
url: https://www.desertcart.ie/products/739980170-portapow-usb-power-blocker-stop-charging-and-support-data-single
store_origin: IE
region: Ireland
---

# Supports USB 2.0 data transfer up to 480Mbps Blocks 5V power line Compact 4-inch red USB-A male-to-female adapter PortaPow USB Power Blocker - Stop Charging and Support Data (Single Pack)

**Brand:** portapow
**Price:** € 1719.24
**Availability:** ✅ In Stock

## Summary

> 🔌 Cut the power, keep the data — stay in control with PortaPow!

## Quick Answers

- **What is this?** PortaPow USB Power Blocker - Stop Charging and Support Data (Single Pack) by portapow
- **How much does it cost?** € 1719.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/739980170-portapow-usb-power-blocker-stop-charging-and-support-data-single)

## 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

- • **Plug & Play Simplicity:** No batteries or drivers needed—just connect and enjoy hassle-free power blocking.
- • **Sleek & Compact Design:** Small 4-inch form factor with gold connectors fits effortlessly into any setup.
- • **Perfect for Precision Tech:** Ideal for sensitive devices like 3D printers and Raspberry Pi where power supply can cause issues.
- • **Trusted by Tech Enthusiasts:** Highly rated with 4.2 stars and proven reliability in real-world applications like Android Auto.
- • **Power Blocked, Data Uninterrupted:** Seamlessly stops power flow while maintaining flawless USB 2.0 data transfer.

## Overview

The PortaPow USB Power Blocker is a USB-A male-to-female adapter that disconnects the 5V power line while preserving USB 2.0 data signals (D+, D-, GND). Designed for specialized applications such as 3D printers and Raspberry Pi, it prevents unwanted power supply without interrupting data transfer at speeds up to 480Mbps. Compact, plug-and-play, and highly rated, it’s the go-to solution for professionals needing precise power management in their USB connections.

## Description

The PortaPow USB Power Blocker is a dedicated USB-A male to female adapter designed to stop power transfer while maintaining data connection. Ideal for applications such as 3D printers and Raspberry Pi which can cause unnecessary power supply. This adapter disconnects 5V line while keeping D+, D and GND connected for USB 2.0 data transfer. Single Pack, Red, Rectangular Item, Gold Connector, CE Specifications 4 inches long, compact and convenient for indoor use. Supports data transfer rates up to 480Mbps

Review: Works as advertised. Blocks the power. I use it with an Android Auto external device because the data+power USB port in my car remains active for an extended period after turning off the car. So I added a splice to draw power from another port (that is off when the car is off) and then only allow data in the primary port. Works perfectly.
Review: Fait parti d'un petit montage dans la voiture pour alimenter le boitier Android Auto sans fil. Le boitier est bien alimenté uniquement quand le moteur tourne. (la connexion se rétablissait avec le téléphone quand je sortait pour aller dans le jardin ou que je bricolais dans le garage). Problème résolu, ça fonctionne depuis 15 jours.

## Features

- This is not a data locker. If you need it, please check out our other PortaPow products
- This is a USB-A male to female adapter that has a D+, D-, 0V (GND) connection, but 5V is disconnected, so it will not pass through power
- It is useful when power supply is undesired effect in special applications such as 3D printers and Raspberry Pi
- Note that this device is not useful in such cases as charging and power blocking data transfer from many devices such as smartphones, tablets, etc
- Support USB 2.0 data transfer

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B094FYL9QT |
| Amazon Bestseller | #82,325 in Computers ( See Top 100 in Computers ) #6,065 in USB Cables |
| Batteries Included | No |
| Batteries Required | No |
| Brand | PortaPow |
| Cable Type | USB |
| Color Name | red |
| Compatible Devices | PC |
| Connectivity Technology | USB |
| Connector Gender | Male-to-Female |
| Customer Reviews | 4.2 4.2 out of 5 stars (734) |
| Date First Available | August 28, 2021 |
| Item Model Number | PP_PBC1 |
| Item Shape | Round |
| Item model number | PP_PBC1 |
| Manufacturer | PortaPow |
| Material | Copper |
| Package Dimensions | 7.4 x 4.9 x 1.2 cm; 20 g |
| Size | 1 |
| Special Features | Stop charging |

## Product Details

- **Brand:** PortaPow
- **Cable Type:** USB
- **Compatible Devices:** PC
- **Connector Type:** USB Type A
- **Special Feature:** Stop charging

## Images

![PortaPow USB Power Blocker - Stop Charging and Support Data (Single Pack) - Image 1](https://m.media-amazon.com/images/I/51FAhda7ziL.jpg)
![PortaPow USB Power Blocker - Stop Charging and Support Data (Single Pack) - Image 2](https://m.media-amazon.com/images/I/51YnuSrATxL.jpg)

## Questions & Answers

**Q: Is the data wires usb 3 or is there another product for usb3 that does this?**
A: This device does NOT pass the USB 3.x data lines, only the D+/D- used for USB 1 and USB 2.
I do not know of a device which passes USB 3.x data lines only.  Doesn't mean that it doesn't exist, but I have never seen one - ever.

**Q: Would this help on a usb keyboard(aluminum) when I walk around house electrostatic discharge when I touch it kb has to plugged in ?**
A: No, this blocks power output from the USB port. As USB keyboards are powered by this voltage output, they keyboard wouldn't work unless it has an ac adapter, or used batteries to operate. The best use case I have found for these power blockers is to keep the voltage from away from the mainboard in a 3d printer so it is able to fully power off when the power supply is switched off.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***S on September 25, 2025*

Works as advertised. Blocks the power. I use it with an Android Auto external device because the data+power USB port in my car remains active for an extended period after turning off the car. So I added a splice to draw power from another port (that is off when the car is off) and then only allow data in the primary port. Works perfectly.

### ⭐⭐⭐⭐⭐ Review
*by C***U on April 7, 2025*

Fait parti d'un petit montage dans la voiture pour alimenter le boitier Android Auto sans fil. Le boitier est bien alimenté uniquement quand le moteur tourne. (la connexion se rétablissait avec le téléphone quand je sortait pour aller dans le jardin ou que je bricolais dans le garage). Problème résolu, ça fonctionne depuis 15 jours.

### ⭐⭐⭐⭐⭐ Review
*by C***M on March 3, 2024*

Kör Octopi / Octoprint med min Raspberry Pi till min 3D printer. Denna blockerar strömöverföring via USB vilket var exakt det jag var ute efter. Produkten skulle kunna vara ännu mindre i storlek, om man får önska något.

## Frequently Bought Together

- PortaPow USB Power Blocker - Stops Charging, Allows Data (Single Pack)
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-25*