USB to 12V Voltage Step Up Converter Cable DC USB 5V to DC (5.5x2.1mm Connector) 12V Transformer Power Supply Adapter Cable Charger Wire 1.5m (5V-12V)

Works exactly as it should. We use this to power a router that we have onboard our boat in order to access WiFi. This powers the router without issue and can even be done off a battery bank for remote use! Only gripe is that this has a very quiet hum, but that is only noticeable when you go to sleep and it's right by your head!

Amazing product, very simple and with good quality. Don’t got for cheaper alternatives to switch your led strips (single colour) they will end up flickering. This one solved my problem.

Arrived as stated and seems to be working well.

It's supposed to boost power from a 5v usb to 12v and once again like the other 3 of similar type I've bought they simply don't work. It's only to power an led light. Waste of money

I used this for the first time at the weekend and it worked really well. Saved me having to get an extension lead out to get 12v in the garden.

So chuffed, I bought this cable for my internet router box on my boat. Its input is 12v 1amp, but came with a 240v adapter plug which meant I needed to run an invertor or connect to a shore line. Plugged this cable into my normal USB sockets and haven't looked back :)

This works great as a power supply for a sega game gear although you need a polarity invertor. You need to make sure your power bank supplies enough amps however.

Works really well with an USB power bank as an alternative to a mains adapter or batteries

Heeft enkele dagen gewerkt, maar daarna was het gedaan.

Muy práctico, un 10

Ok

Impressionnant - fonctionne à la perfection - permet de remplacer une alim transfo 12v (pour une camera de surveillance par exemple) en branchant l'USB simplement sur un adaptateur secteur (comme pour charger un smartphone) - Petit plus: possible également de disposer d'une alim 12v sans avoir accès à une prise électrique (par exemple en voyage ou camping) en branchant le port USB sur une batterie rechargeable (powerbank) - j'en rachète deux que je vais mettre de coté car trop pratique (celle reçue, déjà utilisée pour une guirlande lumineuse de noël, pour remplacer le transfo électrique qui ne fonctionnait plus !)

Powerbank ile modemi çalıştırmak için aldım birçok powerbank ile denememe ragmen kopmalar oluyor 1 dk çalıştırıyor sonra kapanıp açılıyor nedenini çözemedim