{"title":"USB to 2.1mm DC Booster Cable - 9V","handle":"usb-to-2-1mm-dc-booster-cable-9v","url":"/products/usb-to-2-1mm-dc-booster-cable-9v","description":"This USB to DC booster cable has an integrated boost converter that steps up 5V USB power to 9V DC, output through a centre-positive 2.1 mm barrel jack. It's a convenient way to power 9V devices from any USB port — whether from a computer, USB wall charger, or battery pack.\n\nRated for 500 mA continuous output, the cable achieves up to 90% efficiency at low current draw. It's ideal for powering Arduino boards, effects pedals, routers, and other 9V devices without a dedicated power supply.\n\nKey Features\n\n\nIntegrated Boost Converter – Steps up 5V USB to 9V DC output\n\n2.1 mm Centre-Positive Barrel Jack – Standard DC connector for 9V devices\n\n500 mA Rated Output – Suitable for most 9V accessories\n\nUp to 90% Efficiency – Efficient power conversion at low to moderate loads\n\n3 mA Quiescent Current – Low idle power consumption\n\n\nEfficiency at Various Loads\n\n\n50 mA – 9.0V output, ~90% efficiency\n\n100 mA – 8.95V output, ~87% efficiency\n\n200 mA – 8.9V output, ~86% efficiency\n\n300 mA – 8.8V output, ~85% efficiency\n\n500 mA – 8.8V output, ~83% efficiency\n\n\nIdeal For\n\nPowering Arduino and other 9V dev boards from USB\nGuitar effects pedals and audio equipment\nRouters, modems, and small electronics\nPortable setups powered from USB battery packs\n\n\nPackage Contents\n\n1× USB to 2.1 mm DC Booster Cable (9V)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":10443,"title":"Default Title","sku":"AF-2777","price":13.54,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}