The Aetek AET-H42-04230075 is an adjustable industrial gigabit PoE switch designed with an IP67 and IK10 rating, 6KV PoE ethernet port surge protection, 10KV surge protection in AC power, and an operating temperature between -40 and 65 degrees Celsius during harsh weather conditions. It enables outdoor connections of PoE PDs to the network such as outdoor IP cameras, wireless APs, and other industrial applications. The AET-H42-04230075 provides 4 ports gigabit PoE with 1 port gigabit adjustable 24VDC or 56VDC PoE as well as additional SFP transceiver slots for flexible uplink. The AET-H42-042-30-075 is easy-to-install power source equipment (PSE) and provides power up to 30W per port.