A Power Supply 20V-4.2A is an electronic device that converts a source of electrical power, such as AC power from a wall outlet, into a specific DC voltage and current required by the device that it is intended to power. In this case, the power supply provides a constant DC output voltage of 20V and a maximum output current of 4.2A.

These specifications are important because the connected device must be designed to operate within a certain range of voltage and current, and using a power supply with incorrect specifications could damage the device or cause it to not function properly.

This type of power supply is commonly used for powering various electronics such as laptops, portable devices, and other high-power devices.

Input: 100 ~ 240VAC
Type: AC / DC
Power: 85W
Output: 20V – 4.25A
White color
Weight: 206 gr
Size: 15 inches (38cm)

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