1. Plug play2. 40in1cardreader3. Autodetectcardmemory4. Upto480Mbps/sec5. SupportUSBportpower6.Noexternalpowerrequired7. SystemRequirements: Memorycard:WinME/2003/XP/Vista/7/Mac10.4.5/LinuxFedoraCore5SIMCardeditor:WindowsME,2003,XP,Vista,7SmartCard:WindowsME,2003,XP,Vista,7Attention:*ForSIM SmartCardEditor,pleaseinstalltheCDsoftware