The movement of the mobile hard disk, how to check what movement the mobile hard disk is

I don't know what you mean by "only the movement without the shell", if the mobile hard drive does not have a shell, then it is only a laptop hard drive? It's normal for a hard disk (Hitachi 320G inch 5400rpm 8M SATA2 laptop hard drive * licensed joint warranty) to sell for 380? 360 can be, but what you see on the Internet should be the price of a complete mobile hard disk enclosure, that is the price of the box with a core that has been installed for you, take it back and plug it in immediately, you just buy a hard disk to use, you still have to buy another hard disk enclosure to put it in, you can't use it if you don't install it, of course, if you buy an ordinary hard disk enclosure for dozens of dollars a plus hard disk is cheaper than the one on the Internet, but if the hard disk enclosure is also sold for hundreds of pieces, So it's normal for you to see different prices!

Supplement: I saw your supplement, that's right, the merchant is selling you a notebook hard drive, he can't be regarded as a mobile hard drive, maybe you don't know too much so you're blinding you! If you buy this hard disk, you also need to go to a mobile hard disk box to put it in order to be a mobile hard disk, or it can't be used, so his price is not wrong, but plus the money you buy a hard disk box to form a mobile hard disk is about the same price as you see on the Internet!

** on the Internet is not allowed, look a little more, but pay attention, now the original is also divided into now and pre-installed, the brand is also divided into a lot of many, a few gaps may be very amazing, now the computer city is tired of a lot, what should be what you know in your heart, don't listen to js, too cheap may be renovation or other substandard goods. Personally, I see more Samsung's core, most of the 500 pieces on the Internet are with a more original (can only be said to be so) shell, 400 up and down with a general shell is possible, the core is also very likely to be original, many mobile hard disks without a shell are used as cores for general notebook hard disks, and they are generally used, but if you often "move", ......There are a lot of tricks to attract the hard disk.,Just one sentence can tell the truth from the fake.,It's good to follow the dot picture.。

It's normal. The original movement 385 + the original shell 100 Isn't this exactly more than 500 yuan?

But if there is only a movement, I feel that it should be fake, and the difference between the top and bottom is more than 20 yuan is already good, if the difference is too much, hehe, then it is not good.

Normally, it is a three-year warranty, rest assured, if you are really not at ease, let him issue an invoice and write a three-year warranty. As long as the appearance is new, basically the fake may not be very big, at most he will use a one-year warranty as a three-year warranty hard drive to fool you. As long as this question is clear, it is very safe to issue an invoice.

The chip wizard should be detectable!

Mainly, the laptop hard drive inside the portable hard drive is the most prone to damage.

Mobile hard disks are mostly convenient to use, and the internal notebook hard disks are mechanical hard disks, and the seismic performance is not very good.

The second is the interface, which is most likely to be damaged here by repeated unplugging and unplugging.

The most important component of mobile hard disk is the notebook hard disk, but there are only a few manufacturers in the world that can produce hard disks, and the quality is about the same, so mobile hard disks pay more attention to speed and appearance.

The domestic hard disk does not necessarily have an advantage in terms of cost performance, but Western Digital and Hitachi have several mobile hard disks that are quite cost-effective. . .

You can buy WD's now with a three-year warranty.

Solid state. Here's why:

1.Quick start, no motor to accelerate the process of rotation.

Under the same configuration of the two computers, a laptop with an SSD took only 18 seconds to turn on the desktop and a laptop with a traditional hard drive took a total of 31 seconds, which is almost half the difference.

3.Relatively fixed read time. Because the addressing time is independent of where the data is stored, disk fragmentation does not affect the read time.

4.DRAM-based SSDs have extremely fast write speeds.

5.No noise. Because there is no mechanical motor and fan, the noise level is 0 dB when working. Some high-end or high-capacity products are equipped with fans, so they still generate noise.

6.Low-capacity flash-based SSDs consume less energy and heat in operation, but high-end or high-capacity products consume more energy.

7.There are no mechanical moving parts inside, no mechanical failure will occur, and there is no fear of collision, shock, vibration. This does not affect normal use, even when moving at high speeds or even with flipping and tilting, and minimizes the possibility of data loss in the event of an accidental drop or collision with a hard object.

8.Wider operating temperature range. A typical hard drive can only work in the range of 5 to 55 degrees Celsius.

While most SSDs can operate at -10 to 70 degrees Celsius, some industrial-grade SSDs can also operate in temperatures ranging from -40 to 85 degrees Celsius or even greater.

9.Low-capacity SSDs are smaller and lighter than HDDs of the same capacity. However, this advantage gradually diminishes as the capacity increases. Up to 256GB, SSDs are still lighter than HDDs of the same capacity.

Considering that you can only use a mobile hard disk if you only save it without deleting it, it will definitely be more advantageous.

There are both mechanical and solid state drives in mobile hard drives, and whether they are mechanical or solid-state will be clearly stated on the packaging.

Portable SSD: Samsung T1 series.

Mobile HDD: Seagate Backup Plus 1T

Hello, generally speaking, mobile hard disks belong to mechanical hard disks.

Because the large capacity and speed required by portable hard disks are basically enough, there is no need to use SSDs.

And** cheaper than SSDs.

SSDs are made of flash memory particles (i.e., memory, ***, USB flash drives, etc.), so there are no mechanical parts inside the SSD, so that even if it moves at high speed or even when it is flipped and tilted, it will not affect normal use.

A portable hard disk is a combination of an ordinary hard disk and a hard disk enclosure. You can buy a portable hard drive directly, or you can buy a laptop hard drive and assemble it yourself. There are very few portable hard disks with SSDs on the market, because the capacity is too small** too high, except for special purposes, it can basically be disregarded.

If you need help, you can q me, 1020957641

Both types of hard drives have advantages, and security is relative.

The advantage of SSDs: Flash memory stores data, so reads and writes are fast, and there is little to no disk damage due to physical shocks. Cons:

Due to the lifetime limit, the performance will be degraded after a large number of reads and writes, and data may not be written if it continues to develop. However, the theoretical life of SSDs is very long, and even long-term reading and writing can ensure normal use for more than 5 years.

Advantages of mechanical disks: Theoretically, there is no limit on the storage time or number of writes, and the data can be read and written infinitely, and the data will never be lost. Cons:

With traditional disk storage, the read and write speed is slow, and it is easily affected by external physical forces, such as impact, drop, magnetization, etc., which may lead to bad sectors of the disk, irreversible damage, and data loss.

Hello, I personally think that mechanical hard disks are safer, and if the hard disk is broken, just replace the circuit board, and if the solid state drive, he uses flash memory, and there is no way to repair the flash memory if it is broken. Thank you.

None of them can be said to be 100% safe, because they all have similarities and weaknesses. Relatively speaking, solid-state drives are more secure than mechanical hard drives, because there is less mechanical parts, and there is one less failure.