All-in-One (AIO) PC or Desktop Mini PC internal CPU cooling fan for HP Elitedesk 800 G4 G5, ProDesk 400 G4 G5 G6 405 G4 G5 & ProDesk 600 G4 G5 series, P/N:
HP EliteOne 800 G5 All-In-One PC - 23.8" diagonal FHD Display
HP 5NW34AV - HP EliteOne 800 G5 23.8 inch FHD Non-Touch All-in-One Business PC - UK version