Stackable L3 Managed 100G Fibre Aggregation Switch, F2B airflow, 2 TB/s, 48 x 25G SFP28 ports (40G / 100G) and 6 x 100G QSFP28 ports, including 4 x FleX stacking ports (1G / 10G / 25G), hot-swappable fans (5 x) and PSU, optional 2nd PSU., limited lifetime warranty, rack mount rails