The SD series is a surge protector keeping PoE switches, PoE PDs, and any IP device safe from lightning & other forms of electrical interference such as power surges and spikes over networking cables. There are two sub-models classified as harden-graded surge protectors operating between -40°C and 85°C during harsh weather conditions & plug-and-play surge protectors defending the surge up to 20KV. The SD-101 is deployed beside PoE switches, inside junction boxes or power boxes. Besides general specifications of SD-101/SD-102, the SD-201/SD-202 has IP67/IK10 rated metal enclosure to protect outdoor IP devices such as IP cameras and wireless APs. Features: Supports 10M/100M/1G/2.5G/10G bps Ethernet IEEE 802.3 bt/at/af compliant Support UPoE Protects eight wires of networking cable including PoE Protects up to 20KV surge Failure Indicator LED IP67- rated metal enclosure Operating temperature from -40°C to 85 °C