Publication date: Feb., 2012Revision A133SPECIFICATIONSPHYSICAL CHARACTERISTICSPORTS 20 10/100/1000Mbps TP4 100M/1G SFP Combo Port4 1G/10Gbps SFP Fiber portsNETWORKINTERFACEPorts 1-20: RJ-45 connector, auto MDI/X10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better)100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better)1000BASE-T: RJ-45 (100-ohm, UTP or STP cable; Category 5,5e or 6)*Maximum Cable Length - 100 m (328 ft)Ports 21-24: RJ-45 connector/ (100/1000M) SFPPorts 25-28: 1G/10G SFP portsBUFFERARCHITECTURE1392KB on-chip frame bufferAGGREGATEBANDWIDTH28 Gbps for GS-2328KXSWITCHINGDATABASE8K MAC address entriesLEDS System: POWERTP Port: status (LINK/ACT/SPD), 10/100/1000MSFP Port: status (LINK/ACT/SPD), 1G/10GWEIGHT 3.9 kgSIZE 44(H) x 442(W) x 300(D)mmTEMPERATURE Operating: 0°C to 40°C (32°F to 104°F)HUMIDITY Operating: 5% to 90% (non-condensing)POWER INPUT For GS-2328KX series: 100~240VAC, 50~60Hz