Cisco Nexus 3500 Series Option

Part Number	Description
NXA-FAN-30CFM-B=	Nex2K/3K/9KSingleFan,port side intake airflow
NXA-FAN-30CFM-F	Nexus Fan, 30CFM, port side exhaust airflow
NXA-FAN-30CFM-B	Nexus Fan, 30CFM, port side intake airflow
NXA-FAN-30CFM-F=	Nexus2K/3K/9KSingleFan,prtside exhaust airflw