Cabos PoE Switch 4 Port Fast Industrial PoE 10/100mbps IEEE 802.3af/at Mini Aluminium Housing Desktop Ethernet Network Switch (S4MA) (Without Power Adaptor) Mini aluminium housing supports wall mount and desktop installation Unique thermal design, wide operating temperature range -30C ~ 60C MTBF up to 150K hours, designed for 24-hours-working surveillance system The switch requires a 60W-output power supply, and provides PoE signal through the network cables to PoE IP cameras. Maxium PoE output up to 34.2W/port Plug and play installation, easy operation and no need for professional skills