DXS-1210-28S/A1A D-Link DXS-1210-28S/A1A, L2+ Smart Switch with 24 10GBase-X SFP+ ports and 4 10GBase-T ports.32K MAC address, 560Gbps switching capacity, 802.3x Flow Control, 802.3ad Link Aggregation, 4K of 802.1Q V