--- product_id: 739980170 title: "PortaPow USB-A Power Blocker [Not Compatible with Smartphones] Blocks Charging, Power Supply, Supports Data Communication, USB-A Male to Female Single Pack" brand: "portapow" price: "€ 15.01" currency: EUR in_stock: true reviews_count: 6 url: https://www.desertcart.hr/products/739980170-portapow-usb-a-power-blocker-not-compatible-with-smartphones-blocks store_origin: HR region: Croatia --- # Supports 480Mbps USB 2.0 data Power cut-off tech CE certified safety PortaPow USB-A Power Blocker [Not Compatible with Smartphones] Blocks Charging, Power Supply, Supports Data Communication, USB-A Male to Female Single Pack **Brand:** portapow **Price:** € 15.01 **Availability:** ✅ In Stock ## Summary > 🔒 Cut the power, keep the data flowing — the smart block for savvy pros! ## Quick Answers - **What is this?** PortaPow USB-A Power Blocker [Not Compatible with Smartphones] Blocks Charging, Power Supply, Supports Data Communication, USB-A Male to Female Single Pack by portapow - **How much does it cost?** € 15.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/739980170-portapow-usb-a-power-blocker-not-compatible-with-smartphones-blocks) ## 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 Compliance:** CE certified for peace of mind in professional and home setups. - • **Optimized for USB-A:** Specifically engineered for USB Type-A male to female connections, ensuring perfect fit. - • **Plug & Play Security:** No external power needed—ideal for sensitive devices like 3D printers and Raspberry Pi. - • **Compact & Durable Design:** 4-inch red adapter with gold connectors for reliable, long-lasting use. - • **Seamless Data, Zero Power:** Blocks 5V power line while maintaining full USB 2.0 data connectivity. ## Overview The PortaPow USB-A Power Blocker is a specialized USB-A male-to-female adapter that disables power transfer while preserving USB 2.0 data communication at speeds up to 480Mbps. Designed for devices like 3D printers and Raspberry Pi, it enhances security and device safety by preventing unwanted power flow without interrupting data signals. Compact, CE certified, and plug-and-play, it’s a must-have for professionals seeking precise control over USB power and data lines—note: not compatible with smartphones or tablets. ## Description The PortaPow USB Power Blocker is a dedicated USB-A male to female adapter designed to stop power transfer while maintaining a data connection. Ideal for applications such as 3D printers and Raspberry Pi, which may cause unnecessary effect of power supply. This adapter disconnects 5V lines while connecting D+, D, GND for USB 2.0 data transfer. Single pack, red, rectangle, with gold connectors, CE. 4" long and compact for indoor use Supports data transfer rates up to 480Mbps ## Features - [Important] Not compatible with smartphones. Can not be used for smartphone charging control, public USB charging security measures, or USB data rocker for smartphones - A power blocker that blocks charging and power from USB-A connections and allows data to be communicated with compatible devices - This is not a common USB data rocker that disrupts data transmission through charging - Note: This product is not a USB data locker for smartphones. You may not be able to recognize or communicate with your smartphone or tablet - Please use a regular USB data rocker if you want to prevent data transmission when charging your smartphone ## Technical Specifications | Specification | Value | |---------------|-------| | Amazon Bestseller | #14,209 in Computers (See Top 100 in Computers) #1,312 in USB Cables | | Asin | B094FYL9QT | | Brand | PortaPow | | Color | red | | Compatible Devices | PC | | Connector Type | USB Type A | | Customer Reviews | 4.3 4.3 out of 5 stars (1,064) 4.3 out of 5 stars | | Global Trade Identification Number | 00027829469634 | | Manufacturer | PortaPow | | Mfr Part Number | PP_PBC1 | | Model Number | PP_PBC1 | | Number Of Items | 1 | | Number Of Ports | 2 | | Power Plug Type | No Plug | | Unit Count | 1.0 Count | | Upc | 278294696340 027829469634 | ## Product Details - **コネクタタイプ:** USB Type-A - **ブランド:** PortaPow - **ポート数:** 2 - **対応デバイス:** PC。 - **色:** レッド ## Images ![PortaPow USB-A Power Blocker [Not Compatible with Smartphones] Blocks Charging, Power Supply, Supports Data Communication, USB-A Male to Female Single Pack - Image 1](https://m.media-amazon.com/images/I/51YnuSrATxL.jpg) ![PortaPow USB-A Power Blocker [Not Compatible with Smartphones] Blocks Charging, Power Supply, Supports Data Communication, USB-A Male to Female Single Pack - Image 2](https://m.media-amazon.com/images/I/51FAhda7ziL.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 ### ⭐⭐⭐ ラックの裏に落とすとゲーム終了です *by on Reviewed in Japan August 21, 2026* 最初に糸でも付けとくが吉。 ### ⭐⭐⭐⭐⭐ Eficaz *by on Reviewed in Spain June 1, 2026* Cumpre com a sua finalidade ### ⭐⭐⭐⭐⭐ ça marche *by on Reviewed in France 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. ## Frequently Bought Together - PortaPow USB Power Blocker - Stops Charging, Allows Data (Single Pack) - ALINNA Black USB 3.0 Female to Dual USB Male Extra Power Data Y Extension Cable Splitter Adapter for 2.5" Mobile Hard Disk - Anker 323 USB-C Car Charger Adapter, 52.5W Cigarette Lighter Charger with 30W PowerIQ 3.0 Fast Charging Cable for iPhone 15/15 Pro Max, 14/13/12 Series, Galaxy S23/22, Pixel --- ## 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.hr/products/739980170-portapow-usb-a-power-blocker-not-compatible-with-smartphones-blocks](https://www.desertcart.hr/products/739980170-portapow-usb-a-power-blocker-not-compatible-with-smartphones-blocks) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-10-25*