D-Link DIS-300G-12SW - Industrial Managed Layer 2 Gigabit Ethernet Switch, Black

The D-Link DIS-300G-12SW is a Layer 2 industrial managed Gigabit Ethernet switch for environments requiring precise traffic control and segmentation. This non-PoE device features eight Gigabit RJ45 ports for copper connections and four SFP slots for fiber uplinks. It acts as a central node for data distribution across its 12 interfaces. Administrators manage network settings and topologies via a web-based interface. The switch is designed for surface-level or DIN rail deployment rather than standard 19-inch rack mounting.

The metal chassis is wall-mountable and designed for DIN rail installation. The unit has a maximum power consumption of 17 W under full load. Traffic prioritization is managed via Quality of Service (QoS) controls using Weighted Round Robin (WRR) queue scheduling. For security, the device supports IEEE 802.1X with RADIUS authentication, as well as HTTPS, SNMPv3, and SSH for administrative access. The firmware also supports multiple DHCP roles, including server, client, relay, and snooping.

• Support for up to 1024 distinct VLANs using tagged, protocol-based, and port-based configurations.
• 8000-entry MAC address table for tracking connected devices.
• Supports jumbo frames up to 9000 bytes for large data payloads.
• IP30-rated industrial enclosure (61 x 154 x 109 mm; 1086 g).
• Loop prevention and bandwidth management via Spanning Tree Protocol and link aggregation.