Plugable USB Data Blocker, Protect Against Juice Jacking

Plugable USB-MC1

The Plugable USB-MC1 adapter enables you to turn any USB data port in to a charge-only port. This can be advantageous as some devices charge too slowly or do not charge when connected to a USB data port. It also serves to protect your device and its data from hackers and viruses. The MC1 is smaller than a pack of chewing gum and will easily fit in your pocket. Perfect for on the go charging at airports, coffee shops, libraries, and more.

Battery charging over USB has become a standard practice but the actual charging behavior of different devices is often unpredictable and sometimes disappointing. Read below for more background information and if this is the right adapter for you.

USB Charging Information – How it Works

Most devices can’t or won’t charge from normal USB ports and powered hubs if the computer is turned off or not connected. That includes most Android, iOS, and Windows Mobile devices. The phone or tablet must negotiate how much power to pull, to do so by the original USB specification, devices are supposed to only draw 100mA at first and then they can then negotiate up to 500mA. This negotiation requires a PC that’s attached and on. Unfortunately even at 500mA, charging most devices will take a very long time to charge.

For example, the iPhone and most other phones will charge on a standard port this way, but they can also charge faster (up to 1A) if the USB port sends a special, non-standard signal to say “I’m an Apple 1A charger”. The Plugable MC1 adapter simulates that Apple 1A signal, turning any powered USB port with at least 1A power available into a charging port. Even though it’s not standard, it’s how Apple pioneered faster charging, and fortunately, nearly all phones and tablets on the market today recognize this signal as it has become the unofficial standard for USB charging.

For larger devices such as tablets like the iPad, this adapter is even more important because their batteries are larger and charging at 500mA would be too slow.

The AC adapter of your powered hub needs to be rated for at least 1A per USB charging adapter connected. If it is not, USB over-current protection may be triggered (causing all power to the hub to shut off), or the hub circuit or power supply may heat up from too much current being pulled through by the device. If this happens, remove devices until you’re back within the rated amperage. Charging rates will be determined by the maximum charging speed your device supports, the quality of the USB cable you use, and if the USB port has enough power available.

More from the Manufacturer

• Warranty and Support – Questions only an expert can answer? When you contact our support team, you’re connecting with the engineers who design our devices. Every Plugable product is backed by our Seattle-based support team-even before purchase, and a 2-year limited parts and labor warranty after purchase
• FASTER CHARGING – Computer USB ports and many other stand alone chargers will only charge devices at 500mA (.5A) with a normal data cable, this adapters allows charging at 1A or more-twice as fast! Adapter also allows supported devices to charge on most powered USB hubs even when the computer is off or not connected.
• COMPATIBILITY – Adapter simulates an Apple 1A charger signal (nearly all USB devices on the market are capable of charging from this signal as it has become the unofficial standard for USB charging).
• SAFETY – Don’t risk your device and data by charging unprotected on an unknown and unsecure USB port. Our MC1 acts as a USB port ‘firewall’. It isolates your device from the USB data so it cannot enter data transfer mode. With the MC1 there is no risk of hacking/viruses when charging as only the 5V power is allowed through the USB port. Protect your data, identity, and device by keeping hackers and unwanted data access while charging (known as ‘juice jacking’) out.
• PEACE OF MIND – The Plugable ‘USB-MC1’ adapter enables you to turn any USB data port in to a charge-only port. This can be advantageous as some devices charge too slowly or do not charge when connected to a USB data port. It also serves to protect your device and its data from hackers and viruses. The MC1 is smaller than a pack of chewing gum and will easily fit in your pocket. Perfect for on the go charging at airports, coffee shops, libraries, and more.