LFF cabling LFF box 2 or 3: System board Cable part number Color From To P51559-0011 Orange Drive backplane System board 1Option kit: P76474-B21 LFF box 2 or 3: Primary type-o controller Cable part number Color From To P51559-0011 Orange LFF box 2 or 3 Primary type-o controller 1Option kit: P76474-B21 LFF box 1 and 7: Primary type-o controller Cable part number Color From To P51560-0011 Orange LFF box 1 and 7* Primary type-o controller 1Option kit: P56995-B21 *This is a Y-cable. If there is no box 7, then one end will remain loose. LFF box 4 and 5: Primary type-o controller Cable part number Color From To P51561-0011 Orange LFF box 4 and 5 Primary type-o controller 1Option kit: P48823-B21 LFF box 2 and 3: Primary type-p controller Cable part number Color From To P58791-0011 Orange LFF box 2 and 3 Primary type-p controller 1Option kit: P56995-B21 LFF box 1 and 4: Primary type-p controller Cable part number Color From To P46047-0011 Orange LFF box 1 and 4 Primary type-p controller 1Option kit: P48823-B21 LFF box 1 and box 7: Primary type-p controller Cable part number Color From To P51563-0011 Orange LFF box 1 and box 7 Primary type-p controller 1Option kit: P56995-B21 2 LFF box 4 and 5: Tertiary type-p controller Cable part number Color From To P51558-0011 Orange Drive backplane Tertiary type-p controller 1Option kit: P48823-B21 2 LFF box 5: Primary type-p controller Cable part number Color From To P51558-0011 Orange Drive backplane Primary type-p controller 1Option kit: P48823-B21 2 LFF box 4: Secondary type-p controller Cable part number Color From To P51558-0011 Orange Drive backplane Secondary type-p controller 1Option kit: P48823-B21