Netgear 16 port gigabit switch managed July 8, 2019 16 32 64 128 Netgear 16 port gigabit switch managed poe Netgear 16 port gigabit smart managed plus switch gs116ev2 Netgear 16 port gigabit ethernet smart managed plus switch Netgear 16 port gigabit ethernet smart managed plus poe switch Gigabit switch 16 port