HF-IES-4000-S28P24GT4XG is a 28 ports Layer3 managed rack mount Ethernet Switch, could support 4*10G SFP ports and 24*10/100/1000Base TX ports, it’s plug and play. Supporting HF-Ring protocol (recovery time≤15ms), with rich management function, adapting industrial wide temperature design, could work properly under environment temperature -40 ℃ ~ +75℃, relative humidity 5~95% (non-condensing), with dust and salt fog proof, completely suitable for hash industrial environment.