Eathtek Replacement CPU Cooling Cooler Fan for HP ProBook 4535S 4530S 4730S 6460B 8460P 8470P 8450P series, Compatible with part numbers 641839-001 646285-001 6033B0024002 KSB0505HB Compatible Model Numbers: HP ProBook 4535S 4530S 4730S 6460B 8460P 8470P 8450P Replacement and high quality,Replace your faulty, cracked or broken fan. Each fan is tested before shipping All pictures are taken from the real item, please check carefully before bidding. Notes: The fans are produced by Forcecon,ADDA,Sunon,Kipo or any other manufacturers,you may receive any depending on the stocks.