S3900-48M6X Коммутатор Ethernet routing switch with 48 GE ports and 6 10GE ports (1 RJ45 Console port, 24 GE TX ports, 24 100/1000M SFP ports, 6 10G/GE SFP+ ports; a hot-swap AC 220V power supply, supporting dual power; the cooling fan, 1U, 19-inch