SWITCH 48*GBIT+SFP COMBO D-LINK DGS-1210-52 Specificatii: 1000Base-T Interface 48 Combo 1000Base-T/SFP 4 Auto MDI/MDIX Yes 10/100/1000BASE-T ports 48 Combo 10/100/1000BASE-T/SFP ports 4 Switch Capacity 104 Gbps Max. Packet Forwarding Rate 77.4 Mpps Store & Forwarding Forwading Yes Dimension 440mm x 210 mm x 44mm Weight 3.46 kg Operation Temperature -5 - 50°C Storage Temperature -20-70°C Operation Humidity 0% - 95% RH Storage Humidity 0% ~ 95% RH Operating Altitude 1500 meters Maximum Power Consumption 34.85 W/100 V <br>34.2 W/240 V Standby Power Consumption 13.7 W/100V / 13.9 W/240V Maximum Heat Dissipation 118.92 BTU/hr (100V) <br>116.7 BTU/hr (240V) Acoustic 0 dB MTBF 400,667 hours CPU Speed 700MHz DRAM Size 128MB Flash Memory Size 32MB Packet Buffer Size 12Mbits FAN Fanless Power Input 100-240 VAC Comply with RoHS 6 Yes Energy Efficiency Ethernet (EEE) Yes Power Saving By Link Status Yes Power Saving By Cable Length Yes Power Saving By Port Shut-Off Yes Power Saving By System Hibernation Yes MAC Address Table Size 16K 802.3x Flow Control Yes Head-of-line (HOL) Blocking Prevention Yes 802.1D Spanning Tree (STP) Yes 802.1w Rapid Spanning Tree (RSTP) Yes 802.1s Multiple Spanning Tree (MSTP) Yes Root Restriction Yes 802.3ad Link Aggregation Yes Link Aggregation Group Per Device 4 Max Port Per Link Aggregation Group 8 Port Mirroring Yes Jumbo Frame 10,000 Bytes Loopback Detection (LBD) Yes IGMP Snooping Yes Max IGMP Snooping Groups 256 IGMP Snooping Fast Leave Yes MLD Snooping