Product Name:28-Port Gigabit Easy Smart Switch with 24-Port PoE+Product Type:Ethernet SwitchManageable:YesEthernet Technology:Gigabit EthernetNumber of Total Expansion Slots:2Product Family:EasySmartMedia Type Supported:Optical FiberTwisted PairTotal Number of Network Ports:28PoE (RJ-45) Port:YesExpansion Slot Type:SFP (mini-GBIC)Form Factor:Rack-mountableDesktopPower Consumption:27 WPower Source:Power SupplyLayer Supported:2Environmentally Friendly:YesEnvironmental Certification:RoHSCompatible Rack Unit:1UNetwork (RJ-45):YesNumber of SFP Slots:2Modular:YesUplink Port:YesShared SFP Slot:NoPort / Expansion Slot Details:24 x Gigabit Ethernet PoE+2 x Gigabit Ethernet Network2 x Gigabit Ethernet Expansion SlotPoE Budget:250 WNetworking Standards:IEEE 802.3IEEE 802.3uIEEE 802.3abIEEE 802.3xIEEE 802.3afIEEE 802.3atIEEE 802.1QIEEE 802.1pProduct Material:MetalCountry of Origin:VietnamHeight:1.7Width:17.3Depth:8.7Product Model:TL-SG1428PENetwork Technology:1000Base-T1000Base-XProduct Line:EasySmartLimited Warranty:LifetimeFrequency:50 Hz60 HzStock Details:Manufacturer:TP-LINKManuf Part#:TL-SG1428PE