Our USB modems are unlocked for use with any network in the world (where compatible frequencies exist) and will allow you to connect to The Internet using a local data enabled sim card or suitable worldwide sim. If you have a data bundle with any service provider, you can use that sim card subject to entering the provider's settings. If you don't have a data bundle or just want a dedicated sim card, you can purchase any data sim and use a normal Top-Up scheme or online Top-Up scheme to credit the sim. It's so easy to never be without the internet. New to the concept of Mobile Broadband? Mobile Broadband: What is Broadband on the Move? Broadband on the Move gives you internet access, without wires, over the air. You do not need a telephone line, or to be in a Wi-Fi area to get online but instead by using a USB Modem with your Laptop or PC you can have access to fast broadband, when you are on the move. Once you have plugged in your USB Modem you can have access to the internet anywhere in the coverage area (see Section below on Network Coverage), giving you portable access to broadband, when you are on the move. It's easy to set up and easy to use - anywhere! Use the USB Modem with your laptop or PC to surf the Internet or send and receive emails. What's in the Box Broadband USB Stick / Dongle supplied without sim USB cable (non-essential) Features HSDPA/WCDMA 2100MHz HSDPA 3.6Mbps USB Interface and Micro SD card slot Installs automatically and easy to use System Requirements Windows 2000/XP/Vista or Mac OS X 128MB of RAM 50MB free hard disk space or above USB slot You should check mobile broadband coverage and anticipated speed for your locality prior to purchase.