26-Port Gigabit Smart Switch with 2 SFP ports - 24 x 10/100/1000Mbps Auto-Negotiating Ports - 2 x Combo 1000BaseT/Mini-GBIC SFP ports - Advance power saving features - Fanless design - Half-/Full-Duplex, auto-negotiation, Auto MDI/MDIX - IEEE 802.3x Flow Control - 802.3ad Link Aggregation - Asymmetric VLAN, Auto Voice VLAN - 802.1p priority queues - MAC/IP filtering - MAC/IP-based ACL - 802.1X port-base Access Control, Port Security - D-Link Safequare Engine - Smart Console Utility, web based management, compact CLI - D-View 6.0 support - 19" Rackmount Installation.