Intellinet Industrial 4-Port Gigabit Ethernet Switch with 2 SFP Ports, IP40-Rated Metal Housing, DIN-Rail Mount

10/100/1000 auto-sensing ports that automatically detect optimal network speeds IP40 slim-type metal housing to withstand harsh industrial conditions Wide operating temperature: -40 â 75â (-40 â 167°F) Option for DIN-rail installation Two small form-factor pluggable GBIC module slots (SFP) Two redundant DC inputs (12 â 48 V) with I/O terminal block Power failure alarm (one-way relay output, current load capacity 1 A @ 24 V DC) Port surge protection up to 6 k V Grounding point to protect equipment from external electrical surges.