28-port gigabit stackable poe smart pro incl. 4 10g sfp+ (370w) 24 x 10/100/1000mbps poe auto-negotiating ports 4 x 10g sfp+ ports 370w power budget physical stacking up to 6 units per stack. physical stacking bandwidth of 40gb. topology linear - dgs-1510-28xmp/e
