Charging a 5V DC device from a computer via a USB port with a USB to N-type (3.5mm) power cord allows you to Using USB ports available on desktop or laptop computers Supply power to external 5V DC equipment. Mobile applications The perfect solution for mobile applications is the USB to DC plug cable, which can charge 5V devices without the need to pack a wall adapter. This product enables you to connect your device from a USB port to a DC plug, eliminating the hassle of carrying/storing a power adapter. Convert the USB A port to an N-type power connector to power an external drive or mobile peripheral device with a USB A male connector available on a desktop/laptop computer

Instructions for use: Convert the USB port into a DC power plug, and the output voltage is 5V of the USB port. DC5.5 * 2.1mm DC power plug is very common, and with this cable, there is no need to use battery power. It can be used directly by plugging it into the USB port. It is very suitable for small electronic devices and devices that use a 5.5mm jack as a power cord (using a DC cap with an outer diameter of 5.5mm and an inner diameter of 2.1mm). Using a mobile power supply, computer, or USB AC charger to power your 5V DC jack requires a device. DC socket size 5.5mm (outer), 2.1mm (inner) male, with positive center pin. Convert the USB A port into a DC power socket to power external devices.