Reference:
GS-5220-48T4X
This is a Layer 2+ managed Gigabit Switch that features 48-Port 10/100/1000Mbps + 4-Port Shared SFP + 4-Port 10G SFP+ and supports static Layer 3 routing in a 1U case. With 10Gbps uplink, the GS-5220-48X4T can handle extremely large amounts of data in a secure topology linking to an enterprise backbone or high capacity servers. Each of the SFP+ slots supports Dual-Speed, 10GBase-SR/LR or 1000Base-SX/LX, meaning the administrator now can flexibly choose the suitable SFP/SFP+ transceiver according to the transmission distance or the transmission speed required to extend the network efficiently.