S5720S-28X-SI-DC (24 Ethernet 10/100/1000 ports,4 10 Gig SFP+,DC -48V) The S5720-SI series switches (S5720-SI for short) are next-generation standard gigabit Layer 3 Ethernet switches based on a new generation of high-performance hardware and Huawei Versatile Routing Platform (VRP). They provide large switching capacity and high-density GE and 10 GE uplink interfaces. With extensive service features and IPv6 forwarding capabilities, the S5720-SI can be used as access or aggregation switches on campus networks or access switches in data centers. The S5720-SI series integrates many advanced technologies in terms of reliability, security, and energy savings. Simple and convenient to install and maintain, reducing customers