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USB to 2.1mm DC Booster Cable - 12V

SKU: ADA2778

$10.95 AUD, inc GST
$9.95 AUD, exc GST

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USB to 2.1mm DC Booster Cable - 12V
10.95 AUD

SKU: ADA2778

$10.95 AUD, inc GST
$9.95 AUD, exc GST
In stock, with a short lead time. 104 units dispatch in 4 to 7 days (in addition to the shipping method you choose). Our timing and stock is accurate. Delivery to you by Mon, 28th of Aug with Express Post within Australia.

This cable is kinda fascinating - it has an integrated boost converter, so you can plug it into any USB port (from a computer, battery pack, etc) and it will give you a higher DC voltage! It's a handy way to power 12V powered devices with a center-positive 2.1mm DC barrel jack from a USB port. We also have a version that provides 9V, and if you just need a passthough cable, here's one for 5VDC.

These are rated at 500mA output, but you can go a little higher, Adafruit pulled 700mA and Adafruit got a little voltage droop but it worked fine. Probably best not to draw 700mA continuously though!

Here's Adafruit's measurements for various current draws when Adafruit set Adafruit's bench supply to provide a steady 5V voltage

  • 50mA (12.4V output), 150mA,  83% efficiency
  • 100ma (12.4V), 290mA in, 86% efficiency
  • 200ma (12.3V): 570mA in, 86% efficiency
  • 300ma (12.2V): 870mA in, 84% efficiency
  • 500ma (12.1V): 1500mA in, 81% efficiency
  • 700ma (11.4V): 2140mA in, 75% efficiency

So, overall there's a 85% efficiency at low current draw that drops do about 80% at high current use. There's also a 3 mA quiescent current. Note that often times the USB port voltage can droop too, and in addition you may have power losses with any thin or low quality cables with high resistivity!

Technical Details

  • Cable Length: ~1.2m / ~47"
  • Weight: 34.6g

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Product Comments

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.32 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

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Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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