Question : Are there different Sim Card Models/Types?

I am in the midst of testing how best to store asset data and one of the types of assets is a Sim Card.
These days there are Dual SIM Cards which allow multiple phone numbers to be used using the one physical sim. My question is around, is there a list of Sim Card Types/Models that I can reference?

Answer : Are there different Sim Card Models/Types?

Well,

The difference between SIM cards can be based on any (or combination) of the following:

1. Physical Size
2. Operating Voltage
3. Operating System
4. Memory (Storage) Capacity
5. Mobile Standards etc.

While I am not aware of a consolidated list of SIM card types/ models, you will find information for most in the following URLs:

http://en.wikipedia.org/wiki/Subscriber_Identity_Module
http://en.wikipedia.org/wiki/Dual_SIM

Hope this helps.

Warm regards,
Sarang