Allied Telesis AT-GS948MX Ethernet Switch - 48 Ports - Stack Port - 4 x Expansion Slots - 10/100/1000Base-T, 1000Base-X, 10GBase-X - 48 x Network, 2 x Expansion Slot, 2 x Expansion Slot - Twisted Pair, Optical Fiber - Gigabit Ethernet, 10 Gigabit Ethernet - Shared SFP Slot - 2 x SFP Slots - 2 x SFP+ Slots - 2 Layer Supported - Desktop