O2 has a range of dongles and sim cards suitable for laptops, tablets and iPads...
As well as being a mobile phone provider, O2 (www.O2.co.uk) offers a range of mobile broadband packages - with a choice of pay-as-you-go, rolling 30-day deals and 18 or 24-month contracts.
O2's pay monthly contracts come with a generous monthly download allowance, from anywhere between 1GB and 10GB. Additional usage is charged at several pence, so it's best to ensure you're on the right package from day one.
Users also get unlimited access to thousands of free Wi-Fi hotspots.
O2 also offers a monthly discount on its home broadband for customers on selected mobile broadband packages.
O2 mobile broadband benefits
The free Wi-Fi access O2 customers get with their mobile broadband packages is great, as it allows users to save on their download allowance by connecting to the wireless broadband network whenever possible.
O2 mobile broadband coverage
Make sure you check the O2 network's 3G coverage in your area before signing up as coverage can be patchy in more rural parts of the UK. You can check online or in an O2 store.
For more information, read our mobile broadband coverage guide.
Our expert's verdict
Michael Phillips, managing director of broadbandchoices, said: "While O2 doesn't offer the cheapest mobile broadband packages on the market, customers taking one of its pay monthly packages can get a discount on its home broadband - cutting the cost of its already great value bundles."
Use our price calculator to compare broadband deals available in your area.