Is the data wires usb 3 or is there another product for usb3 that does this?

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.

Would this help on a usb keyboard(aluminum) when I walk around house electrostatic discharge when I touch it kb has to plugged in ?

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.

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USB Power Blocker - Stops Charging, Allows Data (Single Pack)

Product ID: 378864059

Details

Brand
PortaPow
Colour
Red
Compatible devices
3D Printer Pi
Connector type
USB Type A
Specific uses for product
3D Printer Pi

💾USB 2.0 data transfer

🔌5V power line blocked

🖥️USB-A male to female adaptor

MOP$221

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Description

🔒 Power off, data on — protect your tech like a pro!

PLUG PLAY SIMPLICITY - No drivers or software needed—just connect and protect your devices instantly.
COMPACT DURABLE DESIGN - Sleek red USB-A adaptor built to last in professional and maker environments.
POWER BLOCKED DATA ALLOWED - Seamlessly stops power flow while maintaining full USB 2.0 data connectivity.
AVOID DEVICE DAMAGE ERRORS - Prevents unwanted power surges or interference that can disrupt sensitive hardware.
SPECIALIST DEVICE COMPATIBILITY - Perfectly engineered for 3D printers and Raspberry Pi setups where power can cause issues.

The PortaPow USB Power Blocker is a USB-A male-to-female adaptor that disconnects the 5V power line while allowing USB 2.0 data transfer. Designed specifically for specialist applications such as 3D printers and Raspberry Pi devices, it prevents power-related issues without interrupting data flow. Compact and easy to use, it’s a must-have for professionals seeking to safeguard sensitive electronics from unwanted power interference.

Specifications

Asin	B094FYL9QT
Best Sellers Rank	#12,826 in Computers (See Top 100 in Computers) #49 in Computer Cases
Brand	PortaPow
Color	Red
Compatible Devices	3D Printer, Raspberry Pi
Connector Type	USB Type A
Customer Reviews	4.3 4.3 out of 5 stars (1,066) 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
Specific Uses For Product	3D Printer, Raspberry Pi
Unit Count	1.0 Count
Upc	278294696340 027829469634

Reviews

User

Eficaz

Cumpre com a sua finalidade

1.06.2026

User

ça marche

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.

7.04.2025

User

Work Perfectly

They work as intended, I'm using one with a Raspberry Pi (running Octopi) attached to an Ender 3 v2 printer to enable controlling the printer via Wi-Fi. Apparently you can damage your Raspberry Pi if you allow the Ender 3 v2 USB port to back feed power into it. This adapter severs the power lines while still allowing the two devices to communicate properly. It's far more elegant then modifying a USB cable. Devices wouldn't communicate at first but it was a bad cable not this adapter so make sure your USB cable is good.They're great value for the money, they can also be used to help eliminate USB power noise on some digital audio interfaces like the Scarlet series for example.

26.02.2026

User

Bom produto

Excelente produto. Recomendo!

19.05.2026

User

Buen producto!

Hace lo que promete.

18.11.2025

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TrustScore 4.5 | 7,300+ reviews

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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MOP$221

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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1 month ago

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