24 PoE 10/100/1000 Base-T port with 4 x 1000Base-T /SFP ports 8 Queues, 1000Mbps SFP support only, Jumbo, MLD, SSH, "DNA" Utility- 24 x PoE 10/100/1000Mbps Auto-Negotiating Ports- 4 x Combo 1000BaseT/SFP Port- Port 1-4 802.3at up to 30W- Port 5-24 802.3af up to 15.4W- Switching Capacity 56 Gbps- Advance power saving features - Half-/Full-Duplex, auto-negotiation, Auto MDI/MDIX- IEEE 802.3x Flow Control- Jumbo frames up to 9216 bytes- 802.3ad Link Aggregation- 802.1D/802.1w/802.1s Multiple Spanning Tree- Asymmetric VLAN, Auto Voice/Surveillance VLAN- 802.1p QoS with 8 queues- MAC/IP filtering- MAC/IP-based ACL 200 rules (Port List)- 802.1X port-base Access Control, Port Security- MLD Snooping- LLDP, LLDP-MED, Smart Binding, Traffic Segmentation- IPv6 configurations- Static Routing and Default Route- D-Link Safequare Engine- D-Link Network Assistent (DNA) Utility, web based management, compact CLI, SSH- Dual Image- D-View 6.0 support- 19" Rackmount Installation- IEEE 802.3az EEE- Firmware Release 6 not backward compatible to Hardware Version C1