1>NET434T Super Wireless 3G Router support PSTN SIM card 2>7.2mbps downlink and 2 ... the router. What a genious design!What's more, it support 3 VPN types, IPSEC, PPTP, L2TP.Fast speed, good ... or above of available spaceOperating System: Windows®2000, XP, Vista, Linux 2.4/2.6Internet Browser: Internet Explorer 6.0 ... 3G External Antenna(option) NET434T Super Wireless 3G Router support PSTN SIM card and VPN