External Hard Disk, SSD, High Tech Product Cheap, Lowest Price

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External Hard Disk, Hard Disk SSD, Product Lowest Price, Cheap

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Hard disk

A hard drive is a computer component that provides storage solutions (such as the SD card) for all digital data:

- operating system,
- documents,
- photos and videos,
- any program and any application.

The storage of all these data is done on the basis of their sizes. The heaviest data necessarily takes up more space than the light data.

The size of the digital data is determined in megabytes, gigabytes, and terabytes.

An external hard drive is just a portable storage solution (similar to a USB drive) that can be used in both of the following cases:

- when you run out of space on your computer's internal hard drive,
- when you want to transport your data away from your computer.

Technical characteristics


The internal disk is a conventional hard disk connected to the computer through the motherboard by a connector (USB).

Difference between internal and external

The internal hard drive is an integral part of a computer and is connected directly to its motherboard while the external drive is a plus, usually plugged into a USB port directly attached to the motherboard.

Storage capacity

High Tech product can have any capacity but maximum capacity standards are between 2 and 4TB. You still need to know that there is at least one new hard drive on the market that has a large capacity of up to 25TB.

Form factor and interface

Two form factors exist for disks:

-2.5" for the portables,
This kind has a compact size,
is lightweight in weight, it is called pocket hard drive.

-3.5" for desktops,
This type is designed for fixed use,
Its storage capacities are very large.

For the interface, the new models use USB3 instead of USB2.

Rotation speed

The different transfer speeds possible in revolutions/min are:

- For the 2''1 / 2 (portable)
   5400 rpm basic format
   7200 rpm format plus

- For 3''1 / 2 (desktop computer)
   7200 rpm basic format
   10000 rpm on SATA and SCSI drives
   15000 rpm only on SCSI disks.

The external hard drive HDD


The HDD employs a mechanical system consisting of several trays, usually aluminum for its lightness, mounted on a shaft rotating with an engine.

These trays are covered with electromagnetic layers that retain the data when the disk is not in use.

Each of the existing trays is provided with a read/write head that a second motor controls. This second motor moves all the heads at the same time.

The main role of these heads is to collect the digital data which will subsequently be transferred to a pilot controller of the engines.

The collected data are formatted and transmitted to the computer via its motherboard.

Flow or data transfer rate

Access time is the time taken for each head to come to the right place for reading or writing.

The longer this head takes to be in the right place on the board, the longer the read/write operation takes.

The SSD portable hard drive

External hard drive - cheap product - Hard drive SSD, lowest  Constitution

The external SSD external hard drive is the type of hard drive's recent hard drive that does not rely on the same system as the HDD. Indeed, it uses a different technology since we go from mechanics to electronics (flash memory).

SSD uses electronic components for data storage like computer RAMs with the difference that stored data is not lost when the disk is not in use.

Trays, rotating shafts and HDD motors are replaced by electronic components.


The SSD is equipped with cells that write data and provide this data for reading. But these cells have a limited lifetime in writing. This has the effect that after a certain time, the first cell used becomes unusable in writing. The system automatically opts for the next cell. The data is not lost but the storage capacity deteriorates.

Comparison between HDD and SSD

Advantages of HDD disks

- Lifespan: It is almost unlimited except in case of mechanical failure which can occur at a minimal frequency,

- Transfer: Backups are quickly made since the transfer speed is great,

- Cost: With equal capacity, HDD external drives are much cheaper.

Advantages of SSDs

- Silent: Since there are only electronic components, it is quiet in operation,

- Shockproof: Shocks have a big impact on mechanical parts and little on electronic components,

- Heating: Electronic parts heat much less than mechanical parts subject to friction.

- Speed: The latency is very low, this type of disc is very fast.

Major disadvantages of SSD

So far, three major drawbacks have slowed the spread of SSD: price, storage capacity and service life.

But progress has been made and these three disadvantages are slowly disappearing.

Indeed, the price gap is shrinking, storage capacity is changing and the service life is improving.


Most computers use the system backup used from the computer to an external storage device, the opposite is not true.

There is however a backup software called AOMEI Backupper which is free. It allows the recovery of data from one storage space to another. The big fihiers do not worry it. Just plug in its USB external drive.

You should also know that there is an option that allows automatic backup of files. Software of this type is compatible with all disks.


The disk is usually sold pre-formatted in fat32 or ntfs but it is still possible to format and reformat it at any time.

- Cost: With equal capacity, it is much cheaper.

The portable external drive of commerce

To be equipped with a hard disk, you have to buy it, which is not easy. You just have to know that the best hard drives belong to the most requested brands are the Toshiba, the Maxtor, the Western Digital Elements, the Seagate. But many other brands are also popular and some models have a sleek design especially the ultra slim.

Storage capacity is usually 500GB, 1TB, 2TB and 3TB. It can go up to 4TB and even more.

The portable external hard drive is housed in a shockproof case, formatted from the factory, equipped with its USB cable.

You have to know how to choose and buy your equipment at lower price (since it exists) and cheap in some models of the market with a good price/quality ratio.
Seagate Expansion Portable

Remaining compatible with USB 2.0 although it is made for USB 3.0, and once plugged in, the hard drive Seagate or Seagate Backup plus allows to transfer files in a very fast way.

The Seagate range is composed of:

- DJI Fly Drive
- Duet
- PortableBackup Plus
- Mobile storage support wireless plus
- Portable Expansion and Expansion Plus
- Fast SSD

Seagate portable hard drive is not expensive. It is on the net at the lowest price.

Here are some features:

- Very fast transfers,
- Compatible with USB 3.0 and 2.0,
- Connect directly,
- Reformable NTFS file system,
- USB port.
- Plug-And-Play function.

Toshiba Canvio Basics

The Toshiba Canvio Basics allows:

- broadband transfers,

Thanks to USB 3.0 technology, this portable hard drive is much faster than with USB 2.0 technology. Nevertheless, it remains compatible with USB 2.0,

- simple plug-and-play operation,

It is ready to be used with Microsoft Windows without the need of any software. Intuitive drag and drop is natural,

- put the data in a safe place,

Indeed, it offers a secure and reliable location for all kinds of data.

The specifications of this disc are as follows:

- Very fast transfer speed 5 Gbits / s,
- Plug-And-Play function,
- Compact box,
- Configuration: W10-W8.1-W8-W7,
- Available port USB 3.0 or 2.0,
- Processor 750 MHz or higher,
- NTFS file system,
- Reformatting possible for Mac,
- Capacities 500 GB, 1 TB, 2 TB, 3 TB and 4 TB ,
- Color available black.

Toshiba Canvio Connect II

The Toshiba Canvio Connect II allows:

- to prevent unauthorized access to personal information, thanks to a small security software included that secures the hard drive with a unique password,

- back up data with the same software,

- very fast transfers,

The main features are:

- Same as Basics,
- Except that the 500 GB does not exist,
- Four colors: black, red, blue and white.

Toshiba Canvio Advance

The Toshiba Canvio Advance allows:

- a complete backup solution with preloaded software,

- fast recovery of files and folders,

- Compatibility is automatic with Mac thanks to an NTFS driver,

Supplied in a compact box to run without software, it equipped with the Plug and Play function,

Thanks to the internal shock detector and the Ramp-Load technology removes the read / write heads, the stored data is protected when moving.

The main features are:

- Very fast transfers,
- Plug-And-Play function,
- Compact case,
- Configuration: W10-W8.1-W8-W7,
- Available USB 3.0 or 2.0 port,
- 750 MHz processor or more,
- Available in 500GB, 1TB, 2TB, 2.5TB and 4TB,
- Colors, Black, White, Red, Blue and Beige.

Western Digital Elements


The external hard drive WD is compatible with new USB 3.0 devices and remains compatible with those equipped with USB 2.0 format.

Connected to a USB 3.0 port, it offers high read speed and write speed. In addition, it is shock resistant, durable and reliable in the long term.

The disc starts once used.

The Western Digital range is composed of:

- My Passport
- My Passport SSD
- My Passport Ultra
- My Passport pour Mac
- WD Elements SE

The price is usually not expensive and the choice is made here on the principle of the least price.

Let's mention some characteristics:
- Hot Change,
- Interface:
     USB 3.0/USB 2.0,
- Size 2.5 ",
- Configuration: W10-W8.1-W8-W7,
- Data transfer rate
      in USB 2.0 : 480 Mbit/s,
- Data transfer rate
      in USB 3.0 : 5000 Mbit/s.


In this range of "various" appellation, we have found 3 excellent brands of Chinese manufacture whose value for money is very interesting.


The Blueendless external hard drive is as follows:

- HDD without installation software,
- Compatible with all operating systems,
- USB 2.0 and USB 3.0 compatible without added,
- 4 colors, black, red, blue and silver.


The Acacis external hard drive has the following properties:

- HDD,
- USB 3.0 interface type,
- Existing capacities, 750 GB, 1 TB and 2 TB,
- 5 colors, silver, pink, black, red and blue.


It comes with:

- A storage capacity of 160 GB to 2 TB,
- USB 3.0 interface type,
- 7 colors, black, red, silver, pink, gray , green and blue.

Few comments

Several commercially available external hard drives (HDD hard disks or SSDs) are a plus for the consumer:

- a port or two USB ports,
- a USB C or USB 3.0 interface,
- a possible encryption,
- a large storage,
- a product compatible with all devices,
- a connector, an adapter and more,
- compatibility with all devices,
- an important cache,
- sata i, sata ii, or sata iii.

The best external hard drive on the market is the one that remains simple with several necessary features and less unnecessary. This type of disc exists, it is branded and not necessarily expensive.
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External hard drive
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2019 Trends

The future of mechanical hard disk drives (HDDs) is not certain as solid state drives (SSDs) arrive on the market. Initially, their prices were expensive compared to HDD but these prices tend to decrease.

According to recent statistics, more than a third of hard drives sold in 2018 are SSDs.

It should be known that the SSD differs from HDD by the non-existence of mechanical organs such as reading heads and trays.

It consists of memory chip as in memory cards and USB keys. Because of this, it is more responsive and faster than HDD.

Finally, it is expected a very large drop in prices, something that will accelerate the replacement of HDD disc.