Buffalo’s BS-GU series of multi-port gigabit switches & BS-GUP series of multi-port gigabit Po E 802.3af switches offer an easy & cost-effective way to extend your business network at gigabit speeds & the convenience of Power over Ethernet 802.3af (BS-GUP series). Plug & play installation requires no additional software or configuration; each gigabit port automatically detects & configures by autosensing the correct connection while full duplex operation & optional jumbo frame support provide maximum performance. Buffalo’s multi-port gigabit switches include power saving features like 802.3az Green Ethernet technology & an energy conservation feature that monitors the activity status of each port to reduce the total power consumed, therefore reducing related operational costs.