In the twenty-first century, people buy goods will gradually orient the so-called C / P (Cost Performance) value of the product. It is literally translated as: [with the most reasonable price, to buy the highest performance products. Price-performance ratio, or cost-effectiveness, or cost-effectiveness). Its economics and engineering refers to the price / performance ratio, refers to a product according to its price can provide performance capabilities. Without considering any other factors, in general, has a more cost-effective products, consumers are definitely the most important consideration to buy one of the elements. So here will be extended to explore, from the computer interior design has been to the entire appearance of the system. From the inside, how to ensure that the material quality, price down, but the focus is not to lose some of the specifications. How to attract consumers to buy All-In-One PC (one machine computer), and how to choose to make consumers feel that the value of the goods, the first point of consideration, Nothing more than the price is definitely the amount of money. So, for this article, if we want to talk about the price before, we must first have a basic idea. All the electronic products are assembled by a combination of one piece of components to complete, it is absolutely impossible to complete a combination of only a single component. With this concept, this article will narrow the scope to only the internal HDMI cable design part of the discussion, and then think about how to suppress the noise wire, but also to meet customer requirements, the price will not be too expensive, and finally by using the actual simulation results, get a best wire design. So that the results will be provided to the customer to make a reference value.