The purpose of using an external hard drive for laptop is stored. Obviously the criteria
should be noted that the storage capacity (in GB) of data backup speed,
connection is standard and durability of the product.
The purpose of using an external hard drive for laptop is stored . Obviously the criteria
should be noted that the storage capacity (in GB ) of data backup speed ,
connection is standard and durability of the product .
The purpose of using an external hard drive is stored Laptop . Obviously, the criteria should be noted that the storage capacity (in GB ) of data backup speed , connectivity standard and especially the durability of the product.
Classification portable hard drive
How to buy an external hard drive - thegioilaptop.com.vn
External hard drive is divided into two main types : Type 3.5 inch size requires a separate power cord with a USB cable for data transfer , the second type is much smaller and lighter , size 2 , 5 inch or 1.8 inch .
Unlike the first type , this type uses only one USB cable for both data transmission and Power to the hard drive . However, small -sized 2.5 inch usually not large as the first category .
Selection maker
On the market today there are many different hard drive vendors like Toshiba , Western Digital , Samsung , Transcend , Apacer , ADATA , Seagate ...
Although Western Digital and Seagate both firms are still Vietnamese users appreciate the quality and durability of the product . This is also the manufacturer has two long sides and also has built a reputation in the Vietnam market .
About warranty , Segate hard drive has the longest warranty period : 60 months . Of course, its price is a little higher , the remaining company warranty their products to the 36 -month period .
Storage
These are important factors that users look at when purchasing a portable hard drive . Naturally, the larger the size of the product price higher . So this is the criteria that many users headaches .
Of course, the user needs based on user needs to select the storage capacity of the hard drive . With an office worker is a hard drive capacity from 160GB is more than enough for storage needs . But what drives contain very important , it is all the result of your work , and many other of your data in a long time , so do not be afraid to spend some money to invest more for this device .
And to consider upgrading the hard drive is not entirely a rational decision about economics , if you buy a 320 GB hard drive , but you still feel the lack of user demand . You decide to buy a 320 GB hard drive again , then you definitely should the total amount of investment will be approximately 3.2 million.
Whereas in the first place you can buy a 640 GB hard drive capacity , the cost outlay is approximately 2.3 million. That would be the right decision will bring more economic efficiency !
Rotating speed drives
Instead of improving the rotation mechanism of the drive , the manufacturer focuses on the development of drive interfaces with the motherboard , which is why the current information on the number of disk rotation disk has " stalled " . Users see only the information 5.400rpm ( revs / min ) , 7.200rpm or 10,000 rpm rotation speed due to the high drive was not entirely created faster working speed .
However , does not mean that you ignore the rotation speed of the drive . Specifically , 5.400rpm speed fast enough to work with interface USB 2.0 and FireWire 400 /800 should instead choose the type of drive speed or 10.000rpm 7.200rpm .
Pay attention to the type of connection
Most of today's external hard drive connected to the device via a USB 2.0 port , a number of new models have built-in USB 3.0 , parallel to that used some sort of connection FireWire ( 400 and 800 ) or eSATA .
The external drive uses USB 2.0 and more popular because it can be compatible with many devices , including netbooks or ultra-light laptops ( ultrabooks ) , with at least one USB 2.0 port . Less common but is faster than FireWire , providing data transfer rate is 400Mbps or 800Mbps .
With eSATA interface connectivity with data transfer rate is very high , 3 Gbps ( 3000 Mbps ) , much faster than USB 2.0 . However, no eSATA interface to connect the power supply cable to the connector , instead users will be equipped with a powered USB cable or an external AC adapter .
The market now has the standard drive with USB 3.0 connection speeds faster than eSATA . USB 3.0 is backwards compatible with USB 2.0 . Some kind of external hard drive incorporates advanced three USB 2.0 , USB 3.0 and eSATA , but the prices are quite high .
Anti- shock hard drive or not
No one has the intention to destroy their equipment . However, no one can be sure that I will preserve the external hard drive in good condition . Story was dropped is not uncommon with specialized storage devices , including external hard drives . This can be considered as one of the reasons that for many the hard drive " to go before the oldest ."
So please choose the preferred type of device has shock-resistant rubber casing or the external device make sure you and good strength if you do not want to quickly buy a new hard drive or worse, lose data important .
Besides these factors , the problem of noise temperature and also very interesting drive . However, the cooling devices can be solved by some simple way also , the loudness difference between firms is not much.
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