The HP Photosmart All In One Power Supply Cable is a black AC adapter designed specifically for HP printers. It has a maximum output power of 30W and an output voltage of 32V, with an output current of 3.25 A. This adapter is compatible with various HP Officejet series and specific Photosmart models such as B210a, B210c, and B210e. Made in China, this power supply cable is a reliable and efficient solution for powering your HP printer efficiently.