Switch D-Link DGS-3120-24SC/SI

Product information:

24-port SFP Layer 2 Stackable Managed Gigabit Switch including 8-port Combo 1000BaseT/SFP with Standard Image
- Managed Gigabit Ethernet Switch
-  dlink|green 3.0 advanced power saving features
- 802.3az Energy Efficient Ethernet (EEE) compatible by port power saving in idle mode
- 24 x Mini-GBIC SFP Ports
   * Including 8 Combo 1000BaseT/Mini-GBIC SFP ports
- 2 dedicated stacking ports for full-duplex 40Gbps stacking (up to 6 units/stack)
- IEEE 802.1D/1w/1s Spanning Tree Protocol, 802.3ad Link Aggregation
- LBD, Port Mirroring
- IGMP/MLD Snooping
- 802.1Q, Voice VLAN, Asymmetric VLAN, GVRP, Port/MAC-based VLAN
- 802.1p, Bandwidth Control
- ACL, Time-based ACL
- SSH/SSL, Traffic Segmentation, ARP Spoofing Prevention, DHCP Server Screening, BPDU Attack Protection
- Port/Host Based 802.1X, Identity-driven security policy assignment, Port/Host Based WAC/MAC, Microsoft NAP Support 
- SNMP, RMON v1/v2, DHCP Auto-configuration, Flash file system, LLDP, DHCP Relay, Multiple images/configuration
- opt. Routed Image (RI) with DHCP Server, VRRP, IPv6 Tunneling, RIP, OSPF, PIM (DM, SM, SSM und Sparse-Dense Mode), DVMRP v3 but w/o stacking
- 1U height, 19" Rackmount Installation