Who knows the relevant national quality standards for hard drives?

There are General Technical Specifications for Hard Disk Drives and Compilation of National Standards for Technical Specifications and Testing of Computers and Their Equipment (Second Edition) that can be ordered online.

If there is no national standard or industry standard for the product, the enterprise standard should be formulated as the implementation standard of the product and filed with the Quality Supervision Bureau.

If you find it difficult and time-consuming to write it yourself, you can write it.

I don't know, I don't think many people know...

The hard disk itself has no bad sectors, and the speed is 7200 for desktops and 5200 for notebooks, capacity, cache, read and write speed, seek rate, and so on.

HD Tune HDDLiO can reflect better.

First of all, look at the cache and speed,If it's a book, you also have to look at the shockproof effect Generally, the new ones won't have bad moral problems.,The capacity is determined according to personal needs.,At present, it's more popular160g,It's enough for some basic users,

Look at the transfer speed, seek time, and cache size.

Mingxuan is also a solid state of a regular brand, that is, a third-line brand, and the quality is also first-class. The minimum is a three-year warranty.

The advantage of this brand's solid-state is that it is cost-effective. It's cheaper than other first-tier and second-tier brands.

Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta and other key regions and municipalities directly under the central government, provincial capitals and cities with separate plans a total of 74 key cities began to implement the new air quality standard monitoring, and through the "national air quality release platform" to the public real-time release including the real-time concentration of 6 pollutants, AQI index and other air quality, this year the Ministry of Environmental Protection organized the implementation of the third phase of the new air quality standard, including 21 provinces and 177 cities above the prefecture level a total of 552 state-controlled air quality monitoring points.

Now that the smog is getting worse and worse, you must protect yourself when you go out, wear some anti-smog masks, and relevant research surveys show that almost 50% of the inhaled ones are deposited in the lungs. As concentrations increase, so does the risk of respiratory and cardiovascular diseases. Therefore, we should not take smog lightly, but should protect ourselves and our families until the air improves.

Let the sky, aim at the Puweixin to help you resist haze, imported from the United States, the filtration efficiency of particles as small as microns to prevent facial allergies, it is recommended to try the experience.

Founded in 1979, Western Digital Corp is headquartered in California, USA, with offices or offices around the world.

American, a pioneer in data storage in the western digital hard drive industry!

Founded in 2001, China's only domestic hard disk is engaged in the research and design, manufacturing and sales services of hard disk drives, and is the first world-class manufacturer in China with its own hard disk brand, with a modern production base in Shenzhen, and has set up its own hard disk research and development center and engineering technology center at home and abroad. Yituo Technology is a high-tech enterprise in Shenzhen, one of the "Top 100 Enterprises" in Shenzhen, and one of the top 500 industrial enterprises in Guangdong Province. The management team is composed of elite experts from China, the United States, Singapore, Malaysia and other places in the hard disk industry, using the world's advanced management concepts, such as 5S, 6 Sigma and lean production, etc., with scientific and rigorous management, the use of network, SAP to manage and optimize the procurement process and the best chain pipeline, to provide a strong guarantee for the manufacture of high-quality hard disk products.

And has passed ISO9001, ISO14001 and OHSAS18001 and other international quality standard certification. As a world-class manufacturer of complete storage solutions, Yituo Technology adheres to independent innovation, is committed to cutting-edge storage technology research, new product testing and development, and aims to provide customers with high-quality products and excellent services technology) and GSOR (Storage Security Recovery Embedded) are comparable to developed countries such as the United States and Japan. Yituo Technology's own brand covers six series, including GSOR secure memory, large-capacity hard disk, external hard disk, mobile hard disk, consumer electronics special hard disk and network hard disk, and the products are exported to a large number of overseas, with customers in dozens of countries or regions on five continents around the world.

The products have won many industry awards at home and abroad, and have won many honors for the country. Among them, the world's first security hard disk GSOR series has been favored by customers as soon as it was launched. We have made full use of domestic and foreign resources to carry out international cooperation, and have successively carried out extensive and in-depth cooperation with many well-known multinational companies in the United States and Japan in the fields of desktop hard disks, digital tape drives, mobile hard disks, etc., and the successful cooperation has greatly enhanced the influence of Yituo Technology in the international hard disk industry.

China's first hard disk is striding to the world. Oh.

The national standard only has three guarantees, and there is no applicable standard for hard disks.

The warranty of the hard disk depends on the manufacturer's regulations, n multi-overlord clauses, and the result is that it is almost impossible for the end consumer to warrant.

If there is a problem, it is relatively better to find the seller's store insurance, if it is impossible to find the manufacturer due to the problem of the overlord clause.

It seems that there is not, if you buy it through regular channels, you can implement the three-pack policy. How long it depends on the manufacturer's regulations.