The Aetek AET-H21-04130075 is an outdoor unmanaged EXPoE switch, and with its IP67/IK10 rating it is designed to operate in harsh environments between -40 to 60 degrees celsius for outdoor IP surveillance application. This switch is specially designed for IP surveillance applications and aside from the standard 802.3af/at PoE functions, the EX mode can help deliver camera images across extreme distances and maximum power of up to 250m via specific EX ports for long reach PoE IP cameras. The Aetek AET-H21-04130075 also features an extra 20 per cent range of input voltage tolerance, lightning surge protection of AC power and PoE surge protection to prevent the damage that can be caused by outside unstable AC power, lightning surges and power spikes. Altogether, these unique features reduce the costs to replace the damaged fault unit.