4 x PoE/PoE+ or +24VDC Output Mode Built-in QoS allows for prioritization of network traffic Broadcast/Multicast/Unicast Storm Control to monitor traffic levels Convenient and intelligent management through the Web UI and the cloud (GDMS) Whisper Quiet: fanless LED Indicators; Per Port: Link/Activity/PoE power state & Per Device: Power Supports Loop Detection, Cable Test, and Port Mirror to quickly locate network faults