Eathtek Replacement CPU Cooling fan for HP Compaq 500 510 520 530 540 C700 HP Compaq Presario A900 series, Compatible Part Number AT010000200 438528-001 KSB0505HA Compatible Model Numbers: HP Compaq 500 510 520 530 540 C700 HP Compaq Presario A900 Compatible Part Number: AT010000200 438528-001 KSB0505HA 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.