Amazon.com: Mini Industrial 3 Port Gigabit PoE Switch with DC12V-48V to DC48V Voltage Booster Hardened RJ45 10/100/1000Mbps 802.3at 30W/Port Ethernet Switch Din Rail Mount Compatible with IP Camera VOIP Phone : Electronics
Cyberdata 3 ethernet ports switch
Amazon.com: 3 Port Hardened Industrial Gigabit Din Rail Switch,10/100/1000Mbps Ethernet Switch Din Rail 24V,8Gbps Switching Capacity,IP40 Rated Unmanaged Network Switch(-40~80°C) : Electronics