I never used this and it's in original box.
Simple configuration 
Build multiple user groups
Prioritize voice and video
Monitor and troubleshoot
VLAN support for traffic separation
Quality of Service (QoS) prioritizes traffic
Auto "Denial-of-Service" (DoS) prevention
Network monitoring and bandwidth control
IGMP snooping for better multicast performance
IEEE 8O2.3az (Energy Efficient Ethernet) support for optimized power savings
Troubleshoot connection issues via cable test
Loop detection