IEEE 802.3 for 10BaseT IEEE 802.3u for 100BaseT(X) IEEE 802.3ab for 1000BaseT(X) IEEE 802.3z for 1000BaseX IEEE 802.3ae for 10 Gigabit Ethernet Fiber IEEE 802.3x for Flow Control with back pressure f

L2 Switch Core, 4x10G SFP Uplinks, 3 Module Slots, 1x 100~220 VAC;2x 48~57 VDC PoE pwr input

L2 Switch Core, 4x10G SFP Uplinks, 3 Module Slots, 2x 48~57 VDC Poe power input,2x 48~57 DC CPU

L2 Switch Core, 4x10G SFP Uplinks, 3 Slots, 1x 100~220VAC, 1x 48~57 VDC in; 2x 48~57VDC PoE in

L2 Switch Core, 4x10G SFP Uplinks, 3 Module Slots, 2x 100~220VAC; 2x 48~57VDC PoE input

L2 Switch Core, 4x1G SFP Uplinks, 3 Module Slots, 1x 100~220 VAC; 2x 48~57 VDC PoE power input

L2 Switch Core, 4x1G SFP Uplinks, 3 Module Slots, 2x 48~57 VDC Poe power input, 2x 48~57 DC CPU