The IS-DG305 Series are full Gigabit unmanaged Ethernet Switches that provide easy to access, plug-n-play Gigabit ports for applications; a full Gigabit network provides higher throughput than legacy Fast Ethernet network. The cost effective IS-DG305 Series unmanaged switches can be easily used in factory production line or embedded into machine system. The IS-DG305 Series also support some useful function by default for network traffic optimization, such as QoS and storm protection.