I would like to draw your attention to the C-Motech CCU-550 EV-DO modem (USB type), this is the old model but still available from some distributors in Bangkok for about 4,900.- Baht (brand-new).

This EV-DO modem is working with SIM card, so it is not necessary to ask Hutch or CAT CDMA to activate it.
I have used this EV-DO modem in the CAT CDMA network in Thailand with good results.
I just went to the local CAT CDMA office in Udon Thani and bought a SIM card alone (I paid only 99.- Baht).
Then I inserted this SIM card into this EV-DO modem and immediately I was able to connect to Internet with my laptop computer at a good speed, 24 hours a day!

If you have any questions please feel free to contact me at any time.
Tel. 086-8618833