Product Name:24 Port GIG Managed SwitchProduct Type:Ethernet SwitchManageable:YesEthernet Technology:Gigabit EthernetNumber of Total Expansion Slots:4Product Family:JetStreamMedia Type Supported:Optical FiberTwisted PairTotal Number of Network Ports:24PoE (RJ-45) Port:NoExpansion Slot Type:SFP (mini-GBIC)Form Factor:Rack-mountableDesktopPower Consumption:19.90 WPower Source:Power SupplyLayer Supported:2Environmentally Friendly:YesEnvironmental Certification:RoHSNetwork (RJ-45):YesNumber of SFP Slots:4Modular:YesShared SFP Slot:NoPort / Expansion Slot Details:24 x Gigabit Ethernet Network4 x Gigabit Ethernet Expansion SlotNetworking Standards:IEEE 802.1pIEEE 802.3adIEEE 802.1DIEEE 802.1wIEEE 802.1sIEEE 802.3xIEEE 802.1QIEEE 802.1xIEEE 802.1abCountry of Origin:ChinaHeight:1.7Width:17.3Depth:7.1Product Model:TL-SG3428Network Technology:1000Base-T1000Base-XProduct Line:JetStreamLimited Warranty:LifetimeFrequency:50 Hz60 HzStock Details:Manufacturer:TP-LINKManuf Part#:TL-SG3428