D-Link DGS-3120-24TC Managed 24-Port Gigabit Stackable Switch

The D-Link DGS-3120-24TC/SI is a managed Layer 2 and Layer 3 Gigabit Ethernet switch that delivers enterprise-level control to small and medium sized networks. It provides twenty RJ45 Gigabit ports for direct device connections and four combo SFP slots that accept copper or fiber transceivers, giving administrators flexible options for uplinks and long-distance links.

The switch runs a feature set that includes IPv6 management, access control lists, and static routing. These capabilities allow teams to segment traffic, apply detailed policies, and prepare their infrastructure for modern protocols without replacing hardware.

Security is addressed through IP-MAC-Port Binding and DHCP Snooping, mechanisms that block rogue devices and stop fraudulent address allocation. When combined with VLAN support, the result is a network that keeps sensitive data where it belongs and maintains consistent service quality for voice and video.

As the network grows, the DGS-3120-24TC/SI can join additional units through physical or virtual stacking. The 40 Gbps stack bandwidth maintains low latency while enabling administrators to manage several switches as a single system, simplifying maintenance and improving resilience.

D-Link Green technology monitors traffic patterns and link status, powering down unused ports and adjusting the integrated fan as needed. This intelligent approach lowers energy costs and reduces heat, which is particularly helpful in dense rack environments or remote cabinets with limited airflow.

The switch suits a variety of scenarios, from acting as the aggregation point for a school campus to serving as an access layer device in a growing office. Whether it is connecting desktops, wireless access points, IP phones, or surveillance cameras, the DGS-3120-24TC/SI provides the speed, control, and expandability that modern networks demand.

• Twenty Gigabit RJ45 ports and four combo SFP slots
• Layer 2 and Layer 3 management with IPv6 and access control lists
• Physical stacking support with 40 Gbps of dedicated stack bandwidth
• Power-saving design that includes a smart fan and port-level energy management
• Security features such as IP-MAC-Port Binding and DHCP Snooping
• Switching capacity of 88 Gbps accommodates heavy data flows
• Rack-mount design fits standard equipment cabinets