Product UPC: 832938032460 The SSG 20 is equipped with five onboard 10/100 interfaces with two I/O expansion slots that support I/O cards, such as ADSL2+, T1, E1, ISDN BRI S/T, V.92 for additional WAN connectivity. Encryption Standard DES, 3DES (168bit), AE. PAT. WiFi Standard IEEE 802.11a/b/g. 2 Antenna. 2 Expansion Slots. 2 PIM Slots. Input Voltage 110 V AC, 220 V AC. Power Source Power Supply. Rackmountable