Provides power & data connection for up to 8 PoE network devices ; Saves time & money by delivering data & power via existing network cables ; Supports IEEE 802.3at & IEEE 802.3af-compliant PoE devices; Supports IEEE 802.3at/af detection & short-circuit, overload & high-voltage protection ; IEEE 802.3x flow control for full duplex ; Supports up to 4,096 MAC address entries ; 160KB buffer memory ; Desktop-size metal case ; 3-year warranty;