Update juniper-hardware.md

config/network/juniper-hardware.md

@@ -12,4 +12,8 @@ breadcrumbs:
 - [Juniper Junos General](../juniper-junos-general/)
 - [Juniper Junos Switches](../juniper-junos-switches/)
 
+## EX3300
+
+- [Fan Mod](/guides/network/juniper-ex3300-fanmod/)
+
 {% include footer.md %}