HPE Aruba JL558A 2930F 48G PoE+ with 4xSFP/SFP+ Switch. 52-port Gig + 10G access switch with high-power 740 Watts PoE+ power. This model has 48x 10/100/1000 PoE+ ports and 4x 10G / 1G SFP+ transceiver slots for uplink connectivity.
eBay