PLANET SGS-5240-20S4C4XR is a Layer 2+ Stackable Managed Gigabit Switch that provides high-density performance, Layer 3 static routing with 10Gbps uplink interfaces delivered in a rugged, strong case. 24 100/1000BASE-X SFP slots. 4-Port 10/100/1000BASE-T RJ45 copper interfaces, shared with Port-1 to Port-4. 4 10GBASE-SR/LR SFP+ slots, compatible with 1000BASE-SX/LX/BX SFP. RJ45 to DB9 console interface for switch basic management and setup. One 10/100BASE-TX Management port. Redundant 100~240V AC and 36-75V DC dual power.