It s so hard to buy a hard drive, what to pay attention to when buying a hard drive

1) Find a person with a high reputation level and large sales, this is a personal online shopping experience, you have purchased more online, and you can also sum up experience, and what is there to return without reason within seven days, after **certification, if there is a problem, **pay first, **and then go to the profiteer theory;

2) No matter how good the reputation of JD is, she is a national **;

3) Advanced point, future consumption trends, consider it, everyone buys together, not only enjoy the best discounts, but also enjoy the quality assurance service (of course, to find a good reputation).

500g generally doesn't cost a few dollars, give it a try, you don't buy it, you never know if you meet a good businessman, or a profiteer? The main thing is that you yourself are forever entangled between buying and not buying!

There are generally no problems with well-known brands;

Or buy a hard drive separately, and then buy a hard drive enclosure to install it yourself.

You can go to Jingdong to take a look and be careful yourself, there are generally no problems, how can there be so many problems.

When not to buy, but buy now, the recent flood in Thailand, the price of hard drives is very high. By the way, it's still JD.com.

1. Pay attention to the type of hard disk: There are two main types of hard disks: solid state drives and mechanical hard disks. A solid-state drive is a type of hard disk, which is a type of hard disk made using an array of solid-state electronic memory chips.

The mechanical hard disk is the traditional ordinary Suizhen only hard disk, which is mainly composed of: head controller, data converter, interface and cache;

2. Pay attention to the brand of the hard disk: first-line brands and second-tier brands are better choices;

3. Capacity: According to the actual needs of the blind people, they can purchase hard disks of different sizes and capacities;

4. Number of revolutions: Theoretically, the higher the number of revolutions, the faster the speed;

5. Nominal internal transfer rate: This is the most real speed of the hard disk, and it is the most intuitive when copying large files;

6. Cache size: The larger the cache, the better. To put it simply, the cache prolongs the life of the hard disk on the one hand, and improves the speed on the other;

Try not to buy second-hand hard drives, generally sell second-hand hard disks in addition to elimination, is a dark disease. If you think it's a good deal, it's generally not too cheap, so it's better to buy a new one. If you buy second-hand, you must be prepared to be deceived, cheap and less pitted, and more distressed if it is expensive.

Buy Western Digital or Seagate. Western Digital: Don't buy green disks. Buy; Blue disc or Seagate Jiandarand will do.

If you don't have a bad money, you can buy Western Digital black disk

Directly in place to buy Western Digital black market.

SSDs can also be bought online.

The longer you use your laptop, the slower it becomes, because the programs on your computer are constantly being updated and your configuration remains the same. The solution to this problem is to buy an SSD, so why buy an SSD?

1. Fast data access speed: According to the relevant ** test: under the same configuration of the laptop, when running large image processing software, it can be clearly felt that the SSD solid state drive is faster whether it is saving or opening files.

When the power switch of the laptop is pressed, the laptop with SSD SSD takes only 18 seconds from boot to out, while the laptop with traditional hard disk takes a total of 31 seconds, which is still quite a big difference.

2. Durable, shockproof and drop-resistant: Because all flash memory chips are used, there are no mechanical parts inside the SSD, so that even in the case of high-speed movement or even with flipping and tilting, it will not affect the normal use, and the possibility of data loss can be minimized when the laptop is accidentally dropped or collided with hard objects.

3. Very quiet when working: The SSD solid state drive is very quiet when working without any noise. Thanks to the lack of mechanical parts, low heat generation and fast heat dissipation of flash memory chips, SSD SSDs have no mechanical motors and fans, and the noise level is 0 dB when working.

4. Good reliability: The reliability of SSD solid state drives is better, and the write error defect has been well solved. Consumers can guarantee a 10-year lifespan of an SSD hard drive under normal use.

For example, Samsung's NAND SSD has a mean time between failures (MTBF) of about 100 to 2 million hours, compared to 10 to 200,000 hours for a typical magnetic hard drive. Since there are no moving parts, the cause of the failure is usually due to the virtual soldering of the component or a problem during the write operation.

5. Light weight is conducive to portability: SSD SSD is 20-30 grams lighter than conventional inch hard drives, but don't underestimate these weights, in laptops, satellite locators and other portable products, lighter weight is conducive to portability. In addition, the weight reduction also makes it possible to carry multiple SSDs on the laptop.

In general, the advantages of SSDs are stability, thinness, fast access, low heat generation, and low power consumption, which are the most suitable storage devices for notebooks.