So, overall there's a 85% efficiency at low current draw that drops do about 80% at high current use. Here's our measurements for various current draws when we set our bench supply to provide a steady 5V voltage Probably best not to draw 700mA continuously though! 50 x 26 x 14mm (measured without strain relief) no external power supply of. These are rated at 500mA output, but you can go a little higher, we pulled 700mA and we got a little voltage droop but it worked fine. USB cable, 10m, for USB 2.0 and USB 1.1, with integrated repeater (small. The DC barrel plug has a standard 2.1mm opening and springs for the center terminal so it can be used with 2.1mm jacks. Daisy-chain multiple cables up to 80 feet. Works with all USB device, such as printers, flash drives, webcams, etc. BUS-powered signal booster for extra long distance 16ft (5m). We also have a version that provides 9V, and if you just need a passthough cable, here's one for 5VDC. Active USB extension cable to extend the distance of a USB device. 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 DC barrel jack from a USB port.
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