Zyxel XGS4600-32 L3 Managed Switch, 28 port Gig and 4x 10G SFP+, stackable, dual PSU
Zyxel SFP-LX-10, 1000BaseLX SFP Module, Long Range 10km, (10 PCS)
Zyxel XGS1930-52, 52 Port Smart Managed Switch, 48x Gigabit Copper and 4x 10G SFP+, hybird mode, standalone or NebulaFlex Cloud