A5191-04004 - HP L-Class Disk Media Backplane Board A5191-04004 - HP L-Class Disk Media Backplane Board $80.50
A5191-60004 - HP L-Class Disk Media Backplane Board for RP5450 /RP5470 /9000 A5191-60004 - HP L-Class Disk Media Backplane Board for RP5450 /RP5470 /9000 $98.05
A5191-67104 - HP Disk/Media Backplane for RP5470 A5191-67104 - HP Disk/Media Backplane for RP5470 $198.72