Compatible with MxSplitProtect Installation Box (Mx-A-SPA): Hat rail module (for 35 mm DIN rails) with integrated 4-kV surge protection (Type 2 P4) for connection to two IP cameras/PoE devices using one Ethernet cable • Interfaces: 3 RJ45 for Ethernet 100Base-T for PoE Mode A, 1 protective earth terminal • Only use in indoor areas, ambient temperature: 0°C to 40°C (32°F to 104°F) • Accessories (available separately): MxSwitch (MX-SWITCH1) • Housing color: gray