Rangale New CPU Cooling Fan for HP ProBook 4535S 4530S 4730S P/N:641839-001 6033B0024002 KSB0505HB 646285-001 KSB0505HB 646285-001 5 months quality warranty Package includes: one pcs CPU Cooling Fan For HP ProBook 4535S 4530S 4730S Series 641839-001 6033B0024002