USB Modem 3.5G HSDPA from China Sell in Cambodia

In order to avoid trouble with lock USB 3.5G or anything belonging to the company, I would recommend buying the modem that can be use with any operating system. Like this you can avoid violating the property right as well.

With the price of $36 and the device can work with all type of operating system I think good enough. You can buy the internet simcard from any company in Phnom Penh such as Cellcard, Metfone, Beeline, Hello, Mfone or Smart to use with this one.