Mobile wi fi hotspot supported card types microsd operating system windows xp windows vista windows 7 windows 81 mac os download speed max 300 mbps transfer rate 867 mbps wireless lan standards ac n g b a wifi frequency bands 24 ghz 50 ghz dual band mode simultaneously encryptions wep wpa wpa2 interfaces 1x micro usb usb port power supply integrated modem 4g technologies lte advanced lte hspa hsdpa hspa hsupa umts internal memory 128