4 ms·

There are multiple projects/products out there for this, some of which are linked here and some of which are not. Not all are currently available. There was a f

There are multiple projects/products out there for this, some of which are linked here and some of which are not. Not all are currently available. There was a fair amount of discussion and useful information in a Brian Krebs article: http://krebsonsecurity.com/2014/06/gear-to-block-juice-jacking-on-your-mobile/ http://krebsonsecurity.com/2014/06/gear-to-block-juice-jacki... USB Condom: ~$10, available. Tends towards either a bare board with USB connectors or that board with plastic shrink tubing on it. (https://www.crowdsupply.com/xipiter/usbcondom https://www.crowdsupply.com/xipiter/usbcondom) (http://www.usbcondoms.com/ http://www.usbcondoms.com/) (probably an earlier version but the same person: http://int3.cc/collections/frontpage/products/usbcondoms http://int3.cc/collections/frontpage/products/usbcondoms) UmbrellaUSB: ~$12, available soon? More polished/finished looking than the USBCondom, got their information on voltages from the USBCondom folks (see comments in the Krebs article above). Working on fulfillment of their Kickstarter (funded July 3). (http://www.umbrellausb.com/ http://www.umbrellausb.com/) ChargeDefense: ~$??, a "coming soon" page, a picture of a prototype, and maybe more in September. (http://www.chargedefense.com/ http://www.chargedefense.com/) LockedUSB: ~$20, available. More technical details available, more expensive and very blocky looking - expect it to block any adjacent ports. Technical information indicates that the single unit should work with both Apple and non-Apple devices (https://lockedusb.com/product/lockedusb-adapter-charger-firewall-power-optimizer/ https://lockedusb.com/product/lockedusb-adapter-charger-fire...) Practical Meter: ~$20, available. Protects ONLY when used with their optimized 3-in-1 charging cables otherwise passes data through. Provides a 5-bar indicator of current. (http://www.powerpractical.com/product/practical-meter http://www.powerpractical.com/product/practical-meter) more details in their kickstarter (https://www.kickstarter.com/projects/david-toledo/the-practical-meter-know-your-power https://www.kickstarter.com/projects/david-toledo/the-practi...) PortPilot: ~$60, not yet available. Much more expensive, MUCH more informative, switchable between data/no data. Includes a display showing possible and actual power draw, etc. Almost a development/diagnostic device. (https://hakshop.myshopify.com/products/portpilot https://hakshop.myshopify.com/products/portpilot) At least 3 listed below via Amazon (2 in UK): PortaPow $7 (2 versions, www.amazon.com/gp/product/B00GC4AJOU, looks like a "beat you to market" device), and Pisen ~$1.70 (http://www.amazon.co.uk/dp/B00E8ALIYU http://www.amazon.co.uk/dp/B00E8ALIYU and http://www.amazon.co.uk/dp/B00E8AJ41E http://www.amazon.co.uk/dp/B00E8AJ41E).

andreyf 12y ago
There is also: http://www.amazon.com/dp/B00EB3LRAE/ http://www.amazon.com/dp/B00EB3LRAE/ Which apparently signals to the charging device to output higher amperage, as cutting the data connection will make some devices only provide 0.5 amps. Not sure why this one is branded "for Galaxy", as the charging device shouldn't really matter.
- rahimnathwani 12y ago
  Because iPads expect a different voltage, so the device has different resistors inside. The one I used for my original iPad is by the same brand, but says 'for iPad': http://www.amazon.co.uk/dp/B00E8ALIYU http://www.amazon.co.uk/dp/B00E8ALIYU
xorcist 12y ago
I've got the LockedUSB device. A bit clumsy, but it works as described. I have several PortaPow devices too, and they work great (except for creaky connectors and plastic), so if I hadn't already the LockedUSB I wouldn't have a second thought buying their USB Fast Charge device since it's smaller and cheaper. If you carry a USB cable around you might as well carry one of these. (But then again, you might as well carry a charger too, so I'm not entirely conviced -- but I did have use for mine once or twice so I can't really regret it.)

andreyf 12y ago

There is also: http://www.amazon.com/dp/B00EB3LRAE/ http://www.amazon.com/dp/B00EB3LRAE/ Which apparently signals to the charging device to output higher amperage, as cutting the data connection will make some devices only provide 0.5 amps. Not sure why this one is branded "for Galaxy", as the charging device shouldn't really matter.

rahimnathwani 12y ago
Because iPads expect a different voltage, so the device has different resistors inside. The one I used for my original iPad is by the same brand, but says 'for iPad': http://www.amazon.co.uk/dp/B00E8ALIYU http://www.amazon.co.uk/dp/B00E8ALIYU

xorcist 12y ago

I've got the LockedUSB device. A bit clumsy, but it works as described. I have several PortaPow devices too, and they work great (except for creaky connectors and plastic), so if I hadn't already the LockedUSB I wouldn't have a second thought buying their USB Fast Charge device since it's smaller and cheaper. If you carry a USB cable around you might as well carry one of these. (But then again, you might as well carry a charger too, so I'm not entirely conviced -- but I did have use for mine once or twice so I can't really regret it.)