£19.99 one off set-up cost

From The 3 Website:

No wires. No contract. Just buy a Top-up and convert it to the Add-on of your choice to get online almost anywhere with your 3 USB Modem.

If you need fast Internet access on the move the ZTE MF627 is the answer. Get broadband speeds with no wires or hassles. Just plug this lightweight USB Modem into your laptop and watch as everything auto-installs whether you’re on Windows or Mac. Easy. The user friendly dashboard is also a breeze (so you don’t need any technical knowledge) and it lets you send and receive text messages while you’re online.

The MF627 gives you download speeds of up to 3.6 Mbps. Plus you can use your new best friend as a memory stick, just add a MicroSD card to the slot and load up to 4GB. And don’t ever worry about losing the lid because it’s connected with a handy strap!

To use your ZTE MF627 you'll need a few things. Your computer or laptop needs a minimum of 50MB hard disk space, 1 free USB port, a Windows 2000, XP, Vista or and Mac OSX operating system. Simple.

Top-Up Details

Top-up costs vary depending on how much you buy at a time:

Top-up £10 and get 1GB for 30 days
Top-up £15 and get 3GB for 30 days
Top-up £35 and get 7GB for 30 days

Modem / Dongle

ZTE MF627 USB Modem
What's this?

Using Abroad

The standard rates for using mobile broadband abroad with 3 mobile are £3 per MB for selected countries, and £6 per MB for other countries.

Until 30th June they offer a 3 Like Home promotion, which allows you to use your service in selected countries for the same price as you do at home.

Click here for more info on using 3 mobile broadband abroad

Details, Compatability, Etc

FREE delivery available
Return Policy: Buy directly from 3Store online, and you can return it, so long as you return it within 14 days from the date of delivery.
Download Speeds: Up to 3.6 Mbps
Compatability: Plug’n’Playinstallation on Windows (2000, XP, Vista) and Mac (10.4 and 10.5)
MicroSD card slot, up to 4GB. (Card not included).