1. With 4x10/100/1000BaseT(X) ports, and 2x1000BaseX SFP slots 2. Redundant dual 12/24/48 VDC power inputs, Built-in over-current protection, Reverse connection protection 3. -40 to 75C operating temperature range (WT models) 4. No fan, low consumption, industrial design standard, industrial grade electronic components, environmental protection & lead-free production 5. Hard aluminum alloy case (Not sheet metal), DIN-rail and wall mounting 6. IP Rating up to IP40 7. No packet lost in 72 hours full load traffic testing