Unit count: 1.0. About : We will provide perpetual customer service, so don't hesitate to contact us about product related questions. And if the product has quality problems within one year, you can contact us for a new one. Din-Rail & Wall Mount –The gigabit PoE switch come with 35mm din-rail mounting bracket and wall mount accessory. Industrial Grade Quality – The hardened mini gigabit PoE switch use industrial grade components and aluminum housing, it can work at wide range temperature -40°C to 75°C (-40°F to 167°F). You can use it in outdoor harsh environment. 12~48V DC Input – The PoE switch support 12~48V DC redundant power input and boost to 48V output. It will solve the problem that you only have 12V or 24V centralized power supply or solar power supply. 3.74x2.76x1.18in Ultra Small – The 5 ports Ethernet PoE switch has smaller size than other switches, it only need small space to place it. Convenient and easy to install. 10/100/1000Mbps Ethernet – The industrial 5 ports Ethernet PoE switch has 5 RJ45 ports 10/100/1000Mbps half/full duplex. 802.3at 30w PoE output max 120w.