Layer 2+ Managed Gigabit Switch support both IPv4 and IPv6 protocols and hardware Layer 3 static routing capability, and provide 24-port 10/100/1000BASE-T RJ45 copper, 4 x 100/1000BASE-X mini-GBIC/SFP slots, shared with Port-21 to Port-24 compatible with 100BASE-FX SFP, 4 x 10GBASE-SR/LR SFP+ slots, compatible with 1000BASE-SX/LX/BX SFP, RJ45 console interface for basic management and setup. The GS-5220-20T4C4X series can handle extremely large amounts of data in a secure topology linking to a data center/service provider backbone or high capacity servers. They can work with a 10Gbps SFP+ server adapter to help SMBs build the 10Gbps Ethernet network providing 10Gbps NAS (Network Attached Storage) or heavy transmission of video streaming service at an affordable price. Redundant PSU.