The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
Bradley Davies, Richard Mustoe, Richie Rees, Shanklin and Tom James all claimed tries, with full-back Ben Blair kicking 14 points for Cardiff.
Cardiff Blues director of rugby Dai Young said: "We talked first half that we were letting ourselves down; I thought the Dragons really wanted it a bit more than us.
"Any 50-50s they won and that's certainly what we said at half-time, we've got to match their enthusiasm and their attitude.”