I went in to “Univer cell Mobile store” and asked about Airtel 3G data card they said there is only one type of device available which costs RS 2100 and provides up to 7.2 Mbps speed. I asked the sales person to provide a demo of the speed , but they are un-able to provide and tried to please me by saying that I will certainly get 7.2 Mbps speed.The USB device has 24.6 MB memory pre-loaded with Airtel 3G connectivity software, both 64 & 32 bit installation files are available. The User interface of the connectivity software is very clean and it allows you to check Text Messages, load contacts in Phone book and check statics of how much data you uploaded and downloaded.