DHCP Server, DSL Modem, Firewall 10/100 Base-T 1 x RJ-11 for DSL ADSL Full Rate (G.DMT ITU G.992.1), ADSL Lite (G.Lite ITU G.992.2) It's a decent modem, and transfer rates are excellent (it knows how to prioritize simultaneous up/downloads VERY well), but definitely USE A POWER STRIP OR INLINE POWER SWITCH instead of the modem's power button