The listing, Sprint U301 USB Device--Sprint 3G/4G Mobile Broadband--Connect to the Internet With PC or Mac has ended.
          I won this off Listia, but decided to keep my home internet.  I'm offering this to fellow Listians who use Sprint.  You can call Sprint for specific plan information.  This has a clear ESN.  I included a picture of the ESN for you.  ESN (DEC): 05901833147
Specs:
Access to Sprint's Mobile Broadband (3G) and 4G networks where available
4G data speeds (WiMAX): Peak download speed of more than 10 Mbps; peak upload speed of 4 Mbps; average download speeds of 3-6 Mbps
3G data speeds (EVDO Rev A.): Peak download speed of 3.1 Mbps; peak upload speed of 1.8 Mbps; average download speeds of 600Kbps–1.4 Mbps)
Backwards compatible to the EVDO Rev. 0 and 1xRTT Networks
GPS enabled supporting Sprint Navigation, BlackBerry Maps and other GPS applications when using the Sprint 3G Mobile Broadband Network
Sprint SmartView connection manager for connectivity to Sprint's 3G and 4G network, as well as quick links for Sprint supported services and tools with an applications drop-down for ease of access to tools like Sprint Speed Test, the Digital Lounge and other pre-defined applications.
Easy installation of Sprint SmartView software on a CD for Windows and Mac OS
Top-notch security employing 3G/4G wireless technology authentication and identification system
Rotating USB connector
Compatibility Windows Vista, Windows XP, Windows 7 (compatible mode with SSV 2.28); Mac OS 10.5 and 10.6 (Snow Leopard)
Dimensions 3,5 x 1.27 x 0.92 inches (HxWxD)
Weight: 1.25 ounces