New HP Probook 4440s 4540s 4740s Laptop CPU Cooler FanProduct Type:Laptop CPU Cooling FanCondition:NewSpecifications:4-pin 4-wires， DC5V 0.50AWarranty:6 MonthsPackage1 pcs fanItem DescriptionCompatible Machine Model:HP Probook 4440s 4540s 4740s Series LaptopCompatible Machine Model:689658-001Note:The fan have more brands. so the fan you receive maybe isn't brand as picture， pls note!Package include:1 x CPU Fan