The DWM-156 3.75G HSUPA USB (Universal Serial Bus) Adapter means that you can connect your notebook to your mobile broadband service wherever you are in the world. While connected, you can transfer data, stream media, & send SMS messages. The DWM-156 is completely unlocked & works with data SIM cards from any operator. • Based on HSUPA 3G technology: up to 7.2 Mbps data transfer speed • Fast USB (Universal Serial Bus) 2.0 interface • Operating Systems: Windows VISTA/XP/2000 & MAC OS X 10.4 & higher • Built-in drivers for true plug-&-play installation • Works as a 3G modem for use with selected D-link routers • Unlocked: works with data SIM cards from any operator