TP-Link TL-SG3428 24-Port Gigabit L2+ Managed Switch w 4 SFP Slots, 24× G RJ45 Ports, 4× G SFP Slots, RJ45/Micro-USB Console Port,Static Routing, OAM, 802.1Q VLAN, QinQ, STP/RSTP/MSTP, IGMP Snooping, 802.1p/DSCP QoS, ACL, 802.1x,Radius/Tacacs+, 1U