2616Sm 16-port 10/100Mbps fast Ethernet Switch. It is ideal product for workgroup, department or backbone computing environment at SME business, school, net bar. Features/Special Features: Complies with IEEE802.3, IEEE 802.3u IEEE, 802.3x, 802.1p Store and Forward Function. Full / Half Duplex mode Plug and Play installation with automatic port configuration 16 10/100M self-negotiable RJ-45 ports, 1 Uplink port. Auto-Shift 10base-T 111and 100base-TX. All ports support IEEE802.3x Full Duplex flow control, and Half Duplex 111back-pressure flow control Basic board width: 3.2 Gbps, supply separate board width for each port to 111realize real bon-blocking transmission 4K MAC address Switch LED indicator: 1 LED (Power) Port LED indicator: 2 LEDs (LINK & 10/100Mbps) Power: 100-240VAC, 50-60Hz Operation Temperature: 0 ~ 40 Store Temperature: -20 ~70 Operation Moisture: 10~90% Store Moisture: 5~90% Size: 440*177*44 mm Safety: UL, CUL, TUV, CE