MikroTik CRS328-4C-20S-4S+RM Smart Switch

Smart Switch, 20 x SFP cages, 4 x SFP+ cages, 4 x Combo ports (Gigabit Ethernet or SFP), 800MHz CPU, 512MB RAM, 1U rackmount case, Dual Power Supplies, RouterOS L5 or SwitchOS (Dual Boot)