D-Link DGS-3420-52P. Switch layer: L2, Switch type: Managed. Basic switching RJ-45 Ethernet ports quantity: 52, 48, 52, Copper ethernet cabling technology: 1000BASE-T, 100BASE-T, 10BASE-T. MAC address table: 16000 entries, Supported data transfer rates: 10/100/1000 Mbps, Switching capacity: 176 Gbit/s. Management protocols: SNMP, Supported network protocols: IPv 4/IPv 6. Weight: 6.24kg