DGS-3000-28SC/A1A D-Link L2 Managed Switch with 20 100/1000Base-X SFP ports and 4 100/1000Base-T/SFP combo-ports and 4 10GBase-X SFP+ ports 网管交换机DGS-1210-28/ME/A2B D-Link L2 Managed Switch with 24 10/100/1000Base-T ports and 4 1000Base-X SFP ports 网管交换机TEL:1391009877...