What could be simpler than a case? What could be more complicated to choose than a case? The market of the cases, with its hundreds of references , forms a gigantic jungle within which the neophyte will lose himself easily. The manufacturers them, fight for a place with the sun with great reinforcement of options generally directed towards the comfort of the user. Among will the deer in becoming market, the company taïwanaise Yeong Yang, which produces cases for PC since 1990 (establishment in Europe since 1995), proposes to us to test one of its last babies known under the soft name of Yy-5603. Have the claws sufficiently sharpened to hang the interest of INpactiens?