The Cisco Nexus 7710 chassis has 10 slots for two supervisor modules and up to eight I/O modules. The chassis also holds up to six fabric modules, up to eight AC or DC 3-kW power supplies, and three fan trays. To group the many networking cables for each I/O module on this chassis, you can install cable management frames on either side of the chassis. You can install an optional locking front door and you can install an optional set of air filters on the front door and cable management frames. The following figure shows the standard hardware features seen from the front of the chassis.