B5L29-60001PC Board - SATA riser PC board PCA-SATA Riser Module
B5L46-67909PC Board - Replacement formatter board (main logic board) designed for HP Color LaserJet Enterprise MFP M577 and Managed E57540 series printers. It acts as the central processing unit for print jobs network communication and device control. LaserJet M577n/dn/x
B5L46-67911PC Board - Formatter (main logic) PC board assembly - For teh Laserjet M577n/dn/x (India)
B5L47-67903PC Board - Scan control PC board assembly
RM2-7122-000CNPC Board - Lower high voltage power supply (HVPS) (D) PC board assembly
RM2-7123-000CNPC Board - Upper high voltage power supply (HVPS) (T) PC board assembly - For duplex models only
RM2-7125-000CNPC Board - Fuser power supply PC board assembly. Fuser Power Supply PCA Assy HP LaserJet M577 M552 M553
RM2-7130-000CNPC Board - Waste toner detect PC board assembly
RM2-7138-000CNPC Board - Memory PC board assembly HP Memory PCA Assembly (PC Board) not a fuser used in various HP Color LaserJet Enterprise printer models.
RM2-7139-000CNPC Board - 550-sheet feeder paper feed tray drive PC board assembly
RM2-7154-000CNPC Board - Environmental sensor PC board assembly