Adopts MPS control chip solution, high-efficiency, high-safety, stable-performance ^^ 10/100/1000Mbps auto-negotiation Ethernet port. Supports 802.3 af/at-compliant PoE standard ^^ Adopts isolated SMPS (Switching Mode Power Supply), effectively protecting the powered device ^^ 5V DC output, suitable for powering and networking Raspberry Pi and other small-scale network devices ^^ Black dull-polish metal case, sturdy and rugged, higher protection level, better heat dissipation