PortaPow 3rd Gen USB Data Blocker (Red 2 Pack) - Protect Against Juice Jacking

The three-star rating is not for the product itself, but instead for the product page. I verified both units received due indeed block data transfer. The product received does not resemble the product details pictured in the listing. Please see attached image to see them side by side.

Look no further! This PortaPow USB data blocker has no connection for data and will only connect the power lines ensuring that your phone or tabled is charged and not accessible through the data lines. A must have for the security aware traveller. Be it due to personal security concerns or business driven concerns, this is the gadget you need to have.

These are great for stopping a data connection with the computer you're connecting to, they're particularly handy with my iPhone 6s and Macbook pro because I have tethering set up, so if I plug the iPhone in without these my tethering connection is used. I've also used them in the office to connect to colleagues computers when I just wanted to charge my phone. I thought they would improve the charge speed of the iPhone when connected to a Macbook but they don't as it seems that Macbooks already supply the full power to charge a phone even when a data connection is active. I found this out by using another very handy product from PortaPow which is the PortaPow Dual USB V3 Power Monitor with SmartCharge - this lets you see how much power a USB device is consuming and as you can see from the attached photos, with a data connection established the power draw is the same as when using the data blocker (note that the power draw goes up and down slightly, hence the difference). But regardless, these are very handy and do the job well. They're also very sturdy. One note - I tried using this in my Audi S4 and it didn't like it, it kept constantly reconnecting and got very confused, so it seems it won't work in all places.

Ça marche parfaitement, cela évite les piratages des données dans des lieux publique, j'ai même acheté un autre paire pour faire cadeaux !

A true power flow through data blocker. Contains no discernable electronics. Nothing suspicious. OS Does not detect the data blocker as being a device. It just has certain contacts missing that would ordinarily transport data. It appears very safe to use. No one should be plugging their USB cable into a public charger, such as at airports and hotels without going through a date blocker first. Protect your devices and security.

Does what it says it should. No complaints. Great product!