- Third generation design, with improved management and security functions - Power-saving D-Link Green technology now in its 2nd generation - Smart fans set to low speed by default for further power savings - Solid security with 802.1X authentication and IP/MAC based Access Control Lists (ACL) - Malicious traffic and performance degradation prevention with D-Link Safeguard Engine - Auto Voice VLAN for the automatic prioritisation of digital voice traffic - Quality of service (QoS) and bandwidth control (down to 64 kbps) - High Reliability with Loopback Detection (LBD) and cable diagnostics - Simple Web based management - SmartConsole utility for the joint management of several switches