产品介绍 : The Edgecore ECS4120-28P switch is a Gigabit Ethernet PoE access switch with four 10G uplink ports. The four built-in 10G SFP+ ports provide uplink flexibility, allowing the insertion of fiber or copper, Gigabit or 10G transceivers, to create up to 10 Gbps high-speed uplinks to servers or service provider, corporate, or campus networks, reducing bottlenecks and increasing the performance of the access network.