D link 48-Port Websmart gigabit smart switch with 4 SFP ports has a rack mountable/desktop form factor. Switch offers multiple management options which allows quick deployment, infrastructure expansion and seamless function upgrades..Ethernet technology: Gigabit ethernet.Switching capacity: 104 Gbps.Warranty: Lifetime limited.Operating temperature: 32 - 122 deg F, operating humidity: 0 - 95% (non condensing).Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1x.By offering multiple management options, the DGS-1210 series allows quick deployment, infrastructure expansion, and seamless function upgrades.Can also detect the length of connected cables to automatically reduce power usage on shorter cable connections.Management: Web based management, command line interface, SNMP, RMON, Syslog, Telnet, VLAN, QoS, MIB.Network technology: 10/100/1000Base-T.Capable of conserving power without sacrificing operational performance or functionality by using D-Link green 3.0 technology.Forwarding performance: 77.4 Mpps.Dimensions: 1.7"(H) x 17.3"(W) x 9.8"(D).MTBF: 201517 hour, RAM: 128MB, Flash memory: 16MB.Interface: 48 x Network (RJ-45), 10Base-T/100Base-TX/1000Base-T - RJ-45, 4 x SFP (mini-GBIC), Ports: 48 x 10/100/1000 + 4 x gigabit SFP.Power supply: 120/230 VAC, 50/60 Hz.D link Websmart gigabit smart switch with 48 ports and 4 SFP ports is designed to provide quick deployment, infrastructure expansion and seamless function upgrades.