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

Bought as a belt-and-braces protection for a 3D printer I am using with a Pi and Octoprint. I don't think I strictly need it, in fact, but it is nice to know this specific problem can't occur. Well-made, does its job, and it's a lot easier than modifying a cable.

There’s no hype with this, it is exactly what it says it is - and they’ve literally made it transparent to prove it. The price perfectly matches the product spec. Didn’t solve my particular problem but that’s an issue with my equipment. Well done for providing an honest, well-priced product that solves a need without having to resort to high-priced, obfuscated snake-oil ! (Or taping over USB pins 🙂) Top marks 👍🏼

Unfortunately didt work, I bought this for the car my phone battery doest get tanked on journeys when using Apple play.Data did not transfer so nothing happened.

I use this on my JetKVM device to make sure power is taken from the USB mains adapter and not the USB socket on the motherboard. Quite a niche use case, but works perfectly!!

Does what it says but it came up in a search that was for usb 3 products but it restricted the interface to 2.0 so was totally useless for my purposes

I bought this as I had a JetKVM with a faulty splitter cable which would cause power to back feed, this solved the problem as it only lets data through.

I bought this to eliminate interference noise , which it did , but while it should pass data , it didn’t pass midi data so was of no use for me sadly, ymmv.

Over priced but due to limited choice it does the job

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.

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.

Hace lo que promete.

Bloquea de manera comprobada la energía del puerto USB del ordenador, permitiendo alimentar independientemente del ruido eléctrico del puerto el cable conectado al conversor digital.

Mycke bra