HSUPA - high speed mobile modem
Ignoring the acronyms, the technology is pretty cool. The Ovation MC950D is the "world's smallest" USB-connected HSUPA modem. It gives HSDPA download speeds of up to 7.2Mbps. and HSUPA-accelerated upload transfers of up to 2.1Mbps.
Such speeds assume the carrier you're connecting to has enabled them, of course. While UK carriers are pushing ahead with 3.6Mbps HSDPA, there's no commercial HSUPA-enabled network over here. HSUPA builds on the 128Kbps uplink speeds of basic 3G, rising to 384Kbps with HSDPA.
Via Reg Hardware