The Logilink CQ4101S is a high performance four-port Ethernet switch designed for use in industrial applications. It is equipped with 16 Gigabit Ethernet ports, two of which are SFP ports for fiber optic connections. It features advanced layer 2 features including VLANs, port-based ACLs, ACL-based filtering, QoS queuing, and IGMP snooping. The switch also supports IPv6 functions, enabling easy deployment of IPv6 networks. It is designed to operate in temperatures ranging from 0 to 70°C. With an ultra-low power consumption and a durable, rugged design, the CQ4101S is an ideal choice for powering high-demand industrial networks.