["Cost-effective 48 port managed Gigabit Layer-2 switch + 4x SFP MiniGbic slots FANLESS for desktop and 19\" rack installation The new ALLNET ALL-SG8452M switch represents an optimal basis for medium and large workgroups with high network and data volumes and enables fast data transfer in the network. With a total of 48 backwards compatible Gigabit ports, the connected computers and servers are connected to each other reliably and powerfully. This With its fanless design, the ALL-SG8452M is also ideal for use in an office environment, as no annoying noise is generated. The switch can be managed smartly and therefore supports all necessary standards such as QoS, VLAN, storm control or IGMP snooping. This ensures the highest performance and security in your network. The robust metal housing is suitable for installation in a 19\" cabinet as well as for wall mounting. Layer 2 switch, smart, store and forward, auto-negotiation 48x RJ45 10/100/1000BaseT(X) 4x SFP miniGbics slots for optional MiniGBIC see e.g. ALL4750/ALL4751 etc. Total = 52 Gigabit ports Possible on all ports (Auto MDI/MDI-X) AC 100V~240V 50/60HZ (12V/4A), internal power supply 19 inch metal housing, mounting bracket included, temperature operation: 0 ~ 40 °C humidity operation: 10% ~ 90% non condensing temperature storage: -40 ~ 70 °C humidity storage: 5% ~ 90% EMC/FCC, CE Class B; Safety/LVD EN60950-1", "48 port Gigabit non-blocking switch architecture + 4 SFP Mini-GBIC slots = total 52 ports", "Supports NWay protocol for speed (10/100/1000Mbps) and duplex mode (half/full) auto-detection", "Switch capacity up to 104G", "VLAN Port-Based / Tagged Based", "Link aggregation", "IGMP Snooping v2/v3 / 256 Multicast Groups", "QoS (Port Based, 802.1p, WRR, DSCP-Based, Basic Mode & Policy Based)", "Storm control (broadcast, multicast, unicast)", "Totally fanless, no more annoying noises", "(19\" inch angle) or wall/table mounting possible", "IEEE802.3 10BaseT", "IEEE802.3u 100BaseTX", "IEEE802.from 1000BaseT", "IEEE802.3ad link aggregation", "IEEE802.1ab Link Discovery Protocol (LLDP)", "IEEE802.3x full-duplex operation and flow control", "IEEE802.1p class of service, priority protocols", "IEEE802.1Q VLAN Tagged Based", "Flow Control (Full Duplex & Half Duplex)", "VLAN (4K VLAN Table, Port-based, IEEE802.1q Tagged-based)", "Link Aggregation (IEEE802.3ad LACP, Static Trunk, 8x max groups, 8 ports/groups, traffic load balancing)", "IGMP snooping (256 multicast groups, IGMP v1/v2/v3", "IEEE802.1ab Link Layer Discovery Protocol (LLDP)", "WRR (Weighted Round Robin)", "Port based QoS", "IEEE 802.1p Class of Service", "DSCP based QoS", "QoS basic mode", "QoS advanced mode (Policy based)", "Broadcast/Uncast/Multicast Storm Control", "IEEE 802.1x", "DHCP Snooping(IP?MAC?Port)", "IP Configuration(IPV4?IPV6)", "User configuration", "Time Settings (SNTP)", "Log management", "SNMP Management(V2)", "RMON", "Port configuration", "Link Aggregation(static?Lacp)", "Port mirroring", "Jumbo frame", "Port Error Disabled Configuration", "Port based VLAN", "Protocol based VLAN", "IGMP Snooping(V2?V3)", "Multicast group(256)", "MAC based ACL", "MAC based ACE", "IPv4-Based ACL", "IPv4-Based ACE", "IEEE 802.1D STP", "IEEE 802.1W RSTP", "IEEE 802.1S MSTP", "Ingress port", "Ingress VLAN", "Egress port", "Egress queue", "Static Mac Setting", "MAC filtering", "Dynamic Address Learning/Setting", "Rma setting", "LLDP port setting", "MED Network Policy", "System Status", "Ping test", "Factory Reboot Switch", "Backup/Upgrade Manager", "Configuration Manager"]