Managed PoE Switch. Works well, perfect for powering lots of raspberry pies or other IoT devices. I also have a bunch of breakout adaptors to convert from PoE to micro-usb and ethernet. Specs: https://eu.dlink.com/uk/en/-/media/business_products/des/des-1526/datasheet/des_1526_datasheet_en_se.pdf Specs: https://www.manualslib.com/manual/1096916/D-Link-Des-1526.html