产品介绍 : ECS4620-28F is a compact but high-performance Gigabit Ethernet Layer 3 switch featuring 28 ports; with 22 100/1000 SFP ports, 2 x 10/100/1000 Combo Ports, 2 x 10G SFP+ ports, and one 10G dual port expansion slot. ECS4620-28F has with 1 x RJ45 console port, 1 x USB type A storage port, RPU connector and Stack up to 4 units