Cisco Nexus 7000 Series Hardware Installation And Reference Manual page 28

Cisco Nexus 7018 System
Figure 8: Standard Hardware Features on the Front and Sides of the Cisco Nexus 7018 Chassis
1 System status LEDs
2 Rack-mount brackets (2)
3 I/O or NAM modules (1 to 16 in slots 1 to 8 and
slots 11 to 18).
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
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5 Air intake for power supply units
6 Air intake for the supervisor modules and I/O
modules
7 Air intake for fabric modules
Overview