Just no. They are absolute garbage and only fit for the bin. Do you honestly think you are getting a 700w psu for £30? On the all important 12v rail where the power is actually needed you will be lucky if the label has half that 700w and the psu will likely deliver even much less than that. The rest will be on the minor rails just like the ancient platforms these crap psu's are based on. They weigh next to nothing which is a sure sign of appalling quality and will be lacking many important safety features meaning that when they fail they will most likely take other components with them. Do yourself a massive favour and buy a decent psu from the outset. It will save a lot of grief in the end. One thing in a pc that should never be skimped on is the psu. It's the single most important component in a pc and skimping on one is nothing but foolishness. Buy a decent one now and it will last a long time through several upgrades.