InMax i303B 3 Port Unmanaged Industrial Ethernet Switches Man Features 3x10/100BaseTX ports Industrial-grade design with -40 to +75°C operating temperature and redundant power inputs Metal, IP40 protection,DIN-Rail mounting, wall mounting Specifications Standards: IEEE 802.3 IEEE 802.3u Interface: RJ45 Ports: 10/100BaseTX auto negotiation LED: Port Led:Copper: Link1,2,3, Act1,2,3 Power Led:PWR