28-Port Gigabit Stackable POE Smart Managed Switch including 4 10G SFP+
- 24 x 10/100/1000Mbps POE Auto-Negotiating Ports
- 4 x 10G SFP+ ports
- 370W Power Budget
- Physical Stacking up to 6 units per stack. Physical Stacking Bandwidth of 40Gb. Topology   Linear or Ring.
- Switch Capacity 128Gbps
- D-Link Green 3.0, 802.3az
- Virtual stacking up to 32 devices.
- Static route 
- IPv6 Management/Ready
- Half-/Full-Duplex, auto-negotiation, Auto MDI/MDIX
- IEEE 802.3x Flow Control
- 802.3ad Link Aggregation
- Asymmetric VLAN, 
- Voice VLAN
- GVRP
- 802.1p priority queues
- MAC/IP filtering
- MAC/IP-based ACL
- 802.1X port-base Access Control, Port Security, traffic segmentation
- D-Link Safequard Engine
- D-Link Network Assist, web based management, compact CLI
- Dual Image FW
- 19" Rackmount Installation