D- LINK DGS-1500-52 48 port Switch Networking

D-LINK - 48-PORT GIGABIT SMARTPRO SWITCH, 4 SFP PORTS (DGS-1500-52). KEY FEATURES : DEVICE TYPE : SWITCH - 52 PORTS - L3 - MANAGED ENCLOSURE TYPE : DESKTOP, RACK-MOUNTABLE - 1U PORTS : 48 X 10/100/1000 + 4 X SFP PERFORMANCE : SWITCHING CAPACITY : 104 GBPS FORWARDING PERFORMANCE : 77.4 MPPS CAPACITY : ACL RULES : 450 MAC ADDRESS TABLE SIZE : 16K ENTRIES ROUTING PROTOCOL : STATIC IP ROUTING REMOTE MANAGEMENT PROTOCOL : SNMP 1, SNMP 2, RMON 1, TELNET, SNMP 3, HTTP, CLI AUTHENTICATION METHOD : RADIUS FEATURES : FLOW CONTROL, BOOTP SUPPORT, ARP SUPPORT, VLAN SUPPORT, AUTO-UPLINK (AUTO MDI/MDI-X), IGMP SNOOPING, SYSLOG SUPPORT, PORT MIRRORING, WEIGHTED ROUND ROBIN (WRR) QUEUING, STORE AND FORWARD, MAC ADDRESS FILTERING, BROADCAST STORM CONTROL, IPV6 SUPPORT, HALF DUPLEX MODE, FULL DUPLEX MODE, MULTICAST STORM CONTROL, UNICAST STORM CONTROL, SPANNING TREE PROTOCOL (STP) SUPPORT, RAPID SPANNING TREE PROTOCOL (RSTP) SUPPORT, DHCP SNOOPING, TRIVIAL FILE TRANSFER PROTOCOL (TFTP) SUPPORT, ACCESS CONTROL LIST (ACL) SUPPORT, QUALITY OF SERVICE (QOS), SAFEGUARD ENGINE, BANDWIDTH CONTROL, D-LINK GREEN TECHNOLOGY, LLDP SUPPORT, LINK AGGREGATION CONTROL PROTOCOL (LACP) COMPLIANT STANDARDS : IEEE 802.1D, IEEE 802.1Q, IEEE 802.1P, IEEE 802.3X, IEEE 802.3AD (LACP), IEEE 802.1W, IEEE 802.3AZ RAM : 128 MB FLASH MEMORY : 16 MB STATUS INDICATORS : LINK ACTIVITY, PORT TRANSMISSION SPEED, POWER EXPANSION / CONNECTIVITY : INTERFACES : 48 X 10BASE-T/100BASE-TX/1000BASE-T - RJ-45 4 X SFP (MINI-GBIC)