GS-2240-48T4X L3 24-Port 10/100/1000T 802.3bt PoE + 4-Port 10G SFP+ Managed Switch Datasheet Manual Firmware Features48 10/100/1000BASE-T Gigabit RJ45 copper ports4 10GBASE-SR/LR SFP+ slots, compatible with 1000BASE-SX/LX/BX SFPRJ45 to RS232 DB9 console interface for basic management and setupPrevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex)Supports VLANSupports Spanning Tree ProtocolSupports Link AggregationProvides port mirror (many-to-1)Supports Ingress/Egress Rate Limit per port bandwidth controlSupports IGMP snooping v1, v2 and v3Querier mode supportIGMP router port Dimension