Both the 9500 and 9530 support the HSDPA 2100MHz Band, which means that they both can connect to 3G networks on carriers that support the 2100MHz band, generally located in Europe and Asia. In North America there is no carrier with 2100MHz support, in order to connect to 3G in the USA, only the Storm 9530, which is the Storm offered by Verizon has CDMA2000 1x EV-DO support, the equivalent of 3G. So the only way that a Storm can connect to a 3G network in the United States is via Verizon's 3G network.
