This power supply board (part numbers RM1-1242 and RK2-0383) is designed for use in HP Laserjet 1320 printers. It is compatible with both the brand and model, and comes with a 30 day money back guarantee. This item is a necessary component for the proper functioning of your printer. Please note that this description does not include any information about the condition of the item, as it is not relevant to the listing. If you have any questions or concerns about the compatibility or functionality of this power supply board, please feel free to contact us for more information.