Vodacom Modem Question

This comment was left on our Orange 250mb data bundle post from a few days ago.

I purchased a Vodacom Modem while in South Africa. I was told it would work in the UK and USA. However, in the USA, I would need to find a Sims card that would convert over to data in order for the modem to work on the Internet. Does anyone know where I can purchase a sims card in the USA or that would work in the USA, that would convert over to data in order for me to use my Modem? If I am right, and if I could convert it over – perhaps I could access the Internet using my Vadacom Modem.

Cristder

Any help dear MIR readers?