We are quite cautious at protecting the data on our phones and laptops. Be it using a simple VPN service when browsing the internet or changing our master passwords regularly, among many other methods. But what about when you leave your phone to charge at a public space such as your favorite coffee shop or the charging kiosk at an airport? Yes, juice jacking is real and hackers can infect your phone with malicious software through your phone's USB port. Scary, I must say. But thankfully devices like USB data blockers prevent that from happening.
The idea behind a USB data blocker is simple. These products block the data pins on the USB port of your charging cable. That way, it eliminates the chance of data flowing from your phone. In short, it acts as a firewall between your phone and the (public) USB port.
The good thing is that most USB data blockers are tiny and fit easily into purse and wallet. You simply have to connect this device your phone's USB Type-A end, and that's about it. Someone rightly called it the USB condom. No, I am not joking.
So, if you have been searching for quality USB data blockers for your phone, here are some of the best ones out there.
The PortaPow 3rd Gen USB Data Blocker is perhaps one of the most popular data blockers out there. Like we mentioned above, this tiny device physically blocks data from leaving your devices. And that's not all. It also bundles a built-in chip that automatically detects the type of the device connected whether it's an iPhone or an Android device, and optimizes the current flow accordingly.
The PortaPow 3rd Gen USB Data Blocker can supply power up to 2.4 Amps of power.
There are quite a few happy users. Do not that you won't get the same charging speed on your smartphone as you normally do, since the device supports only 2.4A charging.
If you are looking for a USB-C data blocker, luckily that's also available. The features are the same except in this case, you get the modern USB Type-C head instead of the USB-A head.
If you want everything to be 'transparent' and visible, you can check out the PortaPow Pure USB Data Blocker. This one has a transparent casing that allows you to see the no-chip design underneath. Yes, no kidding. It's small and will easily fit into your palm. Like its counterpart above, this Pure variant is also compatible with most smartphones and tablets.
The good news is that the transparent design doesn't make it any less durable.
You can also check out PortaPow's cable that comes with a built-in data blocker. It's 3.3ft long and has a standard USB-C port at the end.
The highlight of Plugable's USB-MC1 is its size. It's small and measures just about around 0.8-inches, similar to a flash drive. It supplies current at 1A, which is enough to charge your devices at a decent speed.
Plugable's USB-MC1 has received a fair amount of praise from its users. The common understanding is that it works just as advertised.
The only limitation is that the device can draw a maximum power of 1A. So, even if you plug into a port that is capable of delivering power at 2.1A, it will still simulate a 1A current and charge your device at a slow rate.
Another mini USB blocker that you give a shot is the one by USB Defender. This device follows the same protocol of blocking the data tracks and thus limiting the flow of malware and other harmful elements from charging stations. It weighs just around 0.16 ounces and you won't even know it's there and is capable of fast charging
At the same time, the device is durable and will last you for a long time. It does its job as claimed.
If you are looking for a functional and inexpensive option, the ET USB Data Blocker makes for a good buy. This one comes in a pack of two and is painted in a shade of white. Plus, it's compatible with phones and tablets.
It supports fast charging. So far, this unit has attracted a fair amount of reviews.
However, the width of the product is a little unwieldy, and may prevent you from using the adjacent USB ports on computers and laptops.
Though USB data blockers are a great way to prevent theft of data and other information from your phone, the best option is to carry a power bank (see things to check before buying a power bank) with you whenever you travel. That way you won't have to queue for your turn in a charging station. And well, it's safe and the portability is the cherry on top.
Just keep in mind to invest in a fast charger to avoid carrying a brick-like power bank as you meander through airport traffic.
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