Switch, Firewall, Server manufacturer / supplier in China, offering 02350nhc S5720-32X-Ei-DC Network Switches (24 Ethernet 10/100/1000 ports, 4 Gig SFP, 4 10 Gig SFP+, DC -48V, front access), 02350nhn S5720-36c-Ei-28s-DC Network Switches(28 Gig SFP,4 of Which Are Dual-Purpose 10/100/1000 or SFP,4 10 Gig SFP+,with 1 Interface Slot,with 150W DC Power, 02350nhn S5720-36c-Ei-28s-DC Network Switches (28 Gig SFP,4 of Which Are Dual-Purpose 10/100/1000 or SFP,4* 10 Gig SFP+,with 1 Interface Slot,with 150W DC Powe and so on.