CDU-680 U680 is one cdma usb modem that supports EVDO rev A. This modem has many modern features that facilitate their use
. Features built-in memory is also quite helpful in saving the driver file, so no need to CDROM.
Specification : CDU-680/ U680
CDMA EVDO Rev A USB Modem
Built-in 64mb Usable Flash
OS Support :Windows XP/2000, Linux and Mac OS X
built-in GPS - FIRST EVDO Modem to support GPS on Macs.
Full Mac OS X Connection Manager
built-in antenna connector for external antennas and amplifiers
swivel USB connector
Available for Sprint Mobile Broadband Only