The Aetek AET-D51-04430DC is a 4 port industrial PoE switch. The D51 series of Industrial L2 PoE Switches are designed with 6KV Ethernet port surge protection and harden-graded standard to operate between -40 degrees and 75 degrees for harsh weather conditions.
This series provides multi-port Gigabit PoE (10M/100M/1G) delivering data and power to PoE PDs over a single network cable and additional SFP transceiver slots for flexible uplink. It also has three sub models classified as power source equipment (PSE) and provide PoE budget up to 30W or 90W per port.