1. Check the power supply model and output specification. The power supply model should be suitable for your computer and the power supply output specification should meet the actual needs of the computer. You should choose a power supply that can provide a sufficient and stable power supply to your computer. 2. Choose the right power supply brand and model. The power supply brand and model should be of high quality and have a long service life. The power supply brand and model should also be certified by international standards such as 80 Plus and have passed the rigorous quality inspection. 3. Check the appearance of the power supply. The appearance of the power supply should be in good condition and the cables should not be damaged. Also check the power supply fan and ensure it is working properly. 4. Consider the noise level. The noise level of the power supply should be as low as possible. The power supply fan should be designed to minimize noise. 5. Check the weight and size. The weight and size of the power supply should be suitable for your computer case. Also, check the power supply installation interface to ensure it fits your computer case. 6. Check the price. The price of the power supply should be reasonable and in line with your budget. You should also consider the price-to-quality ratio. 7. Check the warranty period. The warranty period of the power supply should be sufficient and the brand should be able to provide good service and repair. 8. Check customer reviews. Customer reviews can give you an idea of the quality and performance of the power supply. You should read reviews from reputable sources and consider the overall rating and comments. In summary, when choosing a power supply, you should consider the power supply model, brand and model, appearance, noise level, weight and size, price, warranty period and customer reviews. By paying attention to these factors, you can choose a power supply that meets your needs and ensures the stable operation of your computer. How to choose a power supply? 1. First of all, pay attention to the brand. It is better to choose a well-known brand to ensure quality and after-sales service. 2. Next, pay attention to power. Choose a power supply with the appropriate power according to your computer configuration. Generally, it is recommended that the power supply is higher than the power consumption of the computer. 3. Pay attention to the stability of the power supply. Good stability can ensure the stable operation of the computer. The power supply with higher quality is generally more stable. 4. Pay attention to noise. Some power supplies have noise, which can affect the operation of the computer and the quality of life. Therefore, it is recommended to choose a power supply with low noise. 5. Pay attention to size and weight. Power supplies of different sizes and weights may be inconvenient to install and take up more space. Therefore, it is recommended to choose a power supply of moderate size and weight. 6. Finally, pay attention to price. The price of power supply varies greatly. You can choose a power supply with reasonable price and quality according to your budget. 7. After all, pay attention to after-sales. It is better to choose a power supply that can provide timely after-sales service. When you encounter some problems, you can get timely help. Why choose AliExpress this platform to buy The price of goods on the AliExpress platform is very affordable, so-called high quality and low price. And we offer free shipping with short delivery times, so you don't have to wait a long time to receive your purchases. At the same time, the platform is easy and convenient to operate, and you can experience a very comfortable shopping experience on AliExpress. See more details about 600 watt power supply in AliExpress Video Page.