The HP LaserJet RM2-7508 HVPS PC Board is a replacement part specifically designed for HP LaserJet printers, such as the M402 model. This unit, quantity 1, is compatible with HP brand printers and is an essential component for maintaining the functionality of your printer. The HVPS PC Board helps regulate power and provide stability for optimal printing performance. This product ensures that your HP LaserJet printer continues to deliver high-quality prints with reliability.