How to buy an external hard drive, external hdd drive


Choosing to buy an external hard drive or an external HDD for your work, study, entertainment on a PC is better than the choice of many people today, however, how to buy a hard drive, which brand is like What is reasonable, please follow the content below.


Obviously the use of an external hard drive to store data, but with the density of models on the market today, users will feel dizzy and wonder what type to use, which brand, the capacity how much to use.

Similar to the test when buying a laptop, getting the experience of buying a hard drive must go through the process of understanding and identifying your needs. However, unlike checking a newly purchased laptop, buying a hard drive depends on many factors that the laptop does not have. Therefore, today Taimienphi will share as well as guide you how to buy external hard drives, external hdd drives through the following article.

How to buy an external hard drive, external hdd drive

1. Classification of portable hard drive.

The classification of portable hard drives will help you have a better view of the types of mobile hard drives on the market today and know which type of hard drive should suit your needs.

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Currently external hard drives are divided into two main types, including the 3.5 “size, which requires a separate power cable and USB cable to transmit data and the second type is much smaller and lighter. , the size of 2.5 “or 1.8” uses the same USB cable to both transfer data and power the hard drive. However, the 2.5-inch type usually does not have the large capacity as first type.

2. Select a manufacturer

On the market today, there are many different hard drive manufacturers such as Toshiba, Western Digital, Transcend, Apacer, Adata, Seagate … Among them are Western Digital and Seagate brands that are highly appreciated by Vietnamese users for quality and durability. of the product.

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In terms of warranty, most external hard drive manufacturers guarantee their products for a period of 36 months. However, a Segate hard drive has the longest warranty period of up to 60 months and of course its price is also higher than other brands.

3. Storage capacity

This is definitely one of the important factors that many people are interested in, especially those who want to use a mobile hard drive to store music, movies, designs, etc.

For 1.8 “hard drives, there are usually three sizes of 120, 160 and 250GB. With traditional 2.5” sizes, the capacities range from 320GB, 500GB to 2TB and regular 3.5 “drives. is above 2TB, so users need to base on their usage needs to choose the level of storage capacity of the hard drive.

4. Drive rotation speed

The drive rotation speed is a criterion to evaluate the data access capacity of a mobile hard drive, the greater the drive rotation speed, the faster it is to copy and process data. The three basic drive revolutions are 5,400 rpm, 7,200 rpm and 10,000 rpm.

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Although drive speed is not the top criteria to evaluate the performance of portable hard drives because there will be some hard drives with lower USB 2.0 connectivity standards will only be compatible with speed. 7200 rpm or 10,000 rpm or higher.

5. Connection type

External hard drives connected to a computer need to rely on a certain connection protocol, which is the USB port. Currently there are two commonly used USB standards: USB 2.0 and USB 3.0, of which USB 3.0 is the latest USB standard with faster read and write speed. There are also a number of other connectivity standards such as eSata, FireWire or Thunderbolt, … for huge transfer speeds.

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External hard drives use the more common USB 2.0 port because it can be compatible with many devices, including netbooks or ultrabooks, with at least one USB 2.0 port. Less common but faster than the FireWire standard, providing data transfer rates of 400Mbps or 800Mbps.

With eSATA connection interface, has very high data transmission speed, 3Gbps (3,000 Mbps), much faster than USB 2.0. However, the eSATA interface does not provide power via the interface cable, instead users will need to equip a power cable via USB or an external AC adapter.

6. Shock resistance

Storage of external hard drives is something that everyone is concerned about. Unfortunately, dropping is not uncommon with external hard drives. This can be considered as one of the reasons why many external hard drives “leave before the oldest”.

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Therefore, please choose the device with a shock-proof rubber cover or devices with a strong and strong bearing if you do not want to have to replace the new hard drive or worse, lose all important data. important.

7. Cost

The price of a portable hard drive is always differentiated according to their functions and storage capacity. For models with a large capacity of 500GB or more, built-in shock resistance and USB 3.0 standard with the price of about 1.2 million or more, with a capacity of up to 1TB, it will increase from 1.5 million above.

Meanwhile, the capacity of 2TB or more is quite expensive, usually over 2 million but comes with many advanced technologies and protective rubber or metal casing. However, due to the increasing demand and the cost of manufacturing mobile hard drives, many large-capacity hard drives are still quite cheap.

In addition to the criteria listed above, there are many other criteria that can be applied to obtain a reasonable way to buy an external hard drive, such as component material, noise, weight, heat resistance. , … How to buy external hard drives, external HDD above will certainly be the most effective guide before you decide to buy any form of portable hard drive.

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At the same time, with the need to use an SSD as an external hard drive to bring high efficiency, the purchase of SSDs is a necessity. However, there are many people who are unaware of this new type of hard drive and are easily deceived by bad guys, so you need to know and distinguish between SSD and HDD to avoid this situation. Readers can refer to the article instructing how Differentiate SSD and HDD We have shared it earlier to better understand it.

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