52-Port Gigabit Smart Managed Switch including 4 x 100/1000Mbps Combo Ports - 48 x 10/100/1000Mbps Auto-Negotiating Ports - 4 x 100/1000Mbps Combo Ports - Static route - Surveillance Mode - Auto Voice VLAN - Dual software images - Dual configuration files - Switching Capacity 104 Gbps - Advance power saving features – Max power consumption 34.20 Watts - Fanless design - Half-/Full-Duplex, auto-negotiation, Auto MDI/MDIX - IEEE 802.3x Flow Control - 802.3ad Link Aggregation - Asymmetric VLAN - 802.1p priority queues - MAC/IP filtering - MAC/IP-based ACL 450 rules - 802.1X port-base Access Control, Port Security - LLDP, LLDP-MED, Smart Binding, Traffic Segmentation - IPv6 configurations - D-Link Safequare Engine - Smart Console Utility, web based management, compact CLI - D-View 7.0 support - 19" Rackmount Installation - IEEE 802.3az EEE - 440mm x 210mm x 44mm – 4.1 Kg