Product DetailsHuawei E1552 USB wireless cardHSDPA/UMTS:900/2100MHzEDGE/GPRS/GSM:850/900/1800/1900MHzHSDPA:3.6MUSB:2.0RX Diversity(Optional)Compatible with windows 2000/XP/Vista,Mac,and Linux OS Micro SD Card SlotData,SMS and VoiceFlow display and statisticsPhonebookWindows 2000/XP SP4/XP SP2/VistaMac OSX10.4and 10.5with latest upgradesUbuntu7.10/8.04/10,Open SUSE 11.0/10.3,Fedora 7/9/10,Debian 4.0,Xandros 4.2