---
product_id: 359343622
title: "PortaPow USB Power Blocker - Stops Charging, Allows Data (Single Pack)"
brand: "portapow"
price: "₨4745"
currency: LKR
in_stock: true
reviews_count: 8
category: "Porta Pow"
url: https://www.desertcart.lk/products/359343622-portapow-usb-power-blocker-stops-charging-allows-data-single-pack
store_origin: LK
region: Sri Lanka
---

# Supports USB 2.0 data transfer (480 Mbps) Blocks 5V power line Compact red USB-A male-to-female adapter PortaPow USB Power Blocker - Stops Charging, Allows Data (Single Pack)

**Brand:** portapow
**Price:** ₨4745
**Availability:** ✅ In Stock

## Summary

> 🔴 Power off, data on — the smart USB hack you didn’t know you needed!

## Quick Answers

- **What is this?** PortaPow USB Power Blocker - Stops Charging, Allows Data (Single Pack) by portapow
- **How much does it cost?** ₨4745 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/359343622-portapow-usb-power-blocker-stops-charging-allows-data-single-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

- • **Trusted by Pros:** 4.5-star rated with 750+ reviews proving real-world effectiveness and peace of mind.
- • **Plug & Play Simplicity:** No drivers needed—just connect and enjoy immediate power-blocking benefits.
- • **Compact & Durable Design:** Sleek red casing with gold connectors built for reliable indoor use.
- • **Specialist Tech Essential:** Perfect for 3D printers, Raspberry Pi, and niche USB setups where power causes issues.
- • **Power Blocked, Data Uninterrupted:** Seamlessly stops charging while maintaining flawless data flow.

## Overview

The PortaPow USB Power Blocker is a USB-A male-to-female adapter that disconnects the 5V power line while allowing USB 2.0 data transfer at speeds up to 480 Mbps. Designed for specialist applications like 3D printers and Raspberry Pi, it prevents unwanted power delivery without interrupting data communication. Compact, CE-certified, and highly rated, it’s the go-to solution for professionals needing precise USB power control.

## Description

The PortaPow USB Power Blocker is a specialized USB-A male to female adapter designed to halt power transfer while maintaining data connectivity. Ideal for applications like 3D printers and Raspberry Pi where power can cause unwanted effects, this adapter disconnects the 5V line while keeping D+, D-, and GND connected for USB 2.0 data transfer. It's a single pack, red, rectangular item with a gold connector, and supports CE specifications. Measuring 4 inches in length, it's compact and convenient for indoor use. Supports data transfer rates up to 480 Mbps.

Review: Works perfectly for my wireless Carplay adapter. - Works perfectly for my wireless Carplay adapter. The car supplies power to the USB/data port even if the car is off so my phone would connect/stay connected to the adapter anytime I was near it. This dongle lets the data through and I use a USB splitter to get the power from the lighter socket which is not powered when the car is off. Kind of workaround but it works.
Review: Just Works - Blocks power on USB but not data - Does exactly what it is supposed to do and block the +DC power on the USB port but allow data transfer to work. I have this installed on a USB port on a Raspberry Pi5 that uses USB for a serial connection to another device. I didnt want to power this other device with my RPi5. but wanted to use minicom to communicate to it. Works as advertised.

## Features

- This is NOT a data blocker, see PortaPow's other products if that is what you need
- This is a USB-A male to female adaptor which has the D+, D- and 0V (GND) 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.
- Supports USB 2.0 Data Transfer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B094FYL9QT |
| Best Sellers Rank | #1,155 in USB Cables |
| Brand | PortaPow |
| Brand Name | PortaPow |
| Cable Type | USB |
| Color | Red |
| Compatible Devices | PC |
| Connectivity Technology | USB |
| Connector Gender | Male-to-Female |
| Connector Type | USB Type A |
| Customer Reviews | 4.5 out of 5 stars 759 Reviews |
| Data Transfer Rate | 480 Megabits Per Second |
| Global Trade Identification Number | 00027829469634 |
| Indoor Outdoor Usage | Indoor |
| Item Shape | Round |
| Manufacturer | PortaPow |
| Maximum Voltage | 5 Volts |
| Model | PP_PBC1 |
| Number of Items | 1 |
| Number of Pins | 4 |
| Other Special Features of the Product | Stops Charge |
| Recommended Uses For Product | Specialist tech applications, data transfer with power prevention |
| Special Feature | Stops Charge |
| Specification Met | CE |
| UPC | 278294696340 027829469634 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** PortaPow
- **Cable Type:** USB
- **Compatible Devices:** PC
- **Connector Type:** USB Type A
- **Special Feature:** Stops Charge

## Images

![PortaPow USB Power Blocker - Stops Charging, Allows Data (Single Pack) - Image 1](https://m.media-amazon.com/images/I/51YnuSrATxL.jpg)

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Works perfectly for my wireless Carplay adapter.
*by G***M on October 8, 2025*

Works perfectly for my wireless Carplay adapter. The car supplies power to the USB/data port even if the car is off so my phone would connect/stay connected to the adapter anytime I was near it. This dongle lets the data through and I use a USB splitter to get the power from the lighter socket which is not powered when the car is off. Kind of workaround but it works.

### ⭐⭐⭐⭐⭐ Just Works - Blocks power on USB but not data
*by A***T on July 16, 2025*

Does exactly what it is supposed to do and block the +DC power on the USB port but allow data transfer to work. I have this installed on a USB port on a Raspberry Pi5 that uses USB for a serial connection to another device. I didnt want to power this other device with my RPi5. but wanted to use minicom to communicate to it. Works as advertised.

### ⭐⭐⭐⭐⭐ These Work Really Well...
*by K***C on March 20, 2024*

I wish DATA only cables were more readily available. But, alas, they are not. Sure...you could butcher your own cords and cut that power line, but that is a destructive solution. If you've ever controlled a 3D printer with a raspberry pi or other pocket PC, then you probably have learned that traditional USB cables can send enough voltage through the cord to cause issues with the printer, even with the jumper that is supposed to prevent that in place. I bought these to try and stop this compromising current, and, just to varify they work, I plugged a USB powered light into one, and...no power was going to the light. So, I used it with my printer, and it does the job I need very well, and very affordably. I love these. I will probably buy some just to have in stock for a tinkering project where I might need one.

## Frequently Bought Together

- PortaPow USB Power Blocker - Stops Charging, Allows Data (Single Pack)
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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-03*