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A-17
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-06
Appendix A      Technical Specifications
Chassis Airflow
Figure A-15 Airflow for the Cisco Nexus 7010 Chassis
1 Airflow for cooling the supervisor and I/O 
modules
3 Airflow for cooling the power supply units
2 Airflow for cooling the fabric modules