How to select mobile hard disk under the new normal

I stand tall because I stand on the shoulders of giants. - Sir Isaac Newton

How to become an old driver faster? The only shortcut is to learn from the older drivers who have seen more than one hundred battles. As a result, the file copy speed becomes extremely important. Here, I just used SSD mobile hard disk, HDD mobile hard disk in two ways, to find out which is the best choice for novice.

First, evaluation platform

E3 1230V5 + DDR4 16G memory, Gigabyte X150M motherboard, motherboard comes with USB3.0 jack and SATA3. There should be no bottleneck in this platform for this test.


This is the evaluation of the SSD solid state drive, Lite 40th anniversary edition, I put it in the Hitachi HDD box, the mobile hard disk is the old section of Hitachi touro, has now stopped production for sale, here is not on the link.


The white is the evaluation of the mechanical mobile hard disk

Two generations of hard drives to compare the next figure.

Second, two kinds of mobile hard disk under USB3.0 socket test

In order to be more accurate, I chose to plug directly into the USB 3.0 socket on the back of the motherboard. And the wires are all on the same wire, minimizing errors.

The test software mainly uses two softwares, HDtune and FASTCPOY.

1, HDTUNE

This is the information that SSD is used as a mobile hard disk, which is checked by hard disk detection software. It does not appear that the amount of host writes is a problem of converting sockets.

The benchmarks, random access, additional tests, and document benchmarks were evaluated. The results are as follows:

Here is the data of WD mechanical hard disk

This mobile hard disk is 5400 rpm.

It can be seen that the average read speed of the SSD mobile hard disk is about twice that of the mechanical one, and the access time is the fraction of the mechanical fraction. The burst transfer rate is almost the same. As for random access and so on, it is infinitely many times

2. FASTCOPY, test speed gap in actual use

Also in the usb3.0 mode, use fastcopy this software to copy a large file, look at the actual application, the speed gap is how much.

The author chose a very moving Hong Kong love non-action movie, "Crimson Deduction", MP4 format, 1.9 G. In practical applications, many of them are AVI, MKV, and RMVB, so this 1.9 G is equivalent to two AVIs and should still be a little representative.

(The figure above is the machine, the figure below is the solid state.) It can be seen that the speed of a large file copied by the SSD mobile hard disk is about 1.72 times that of a mechanical mobile hard disk, and the time is also greatly shortened.

Third, two kinds of mobile hard disk under USB2.0 socket test

The above test is the speed under the USB3.0 mode, given that many old drivers are the same as the authors, and they are removed from the map, the motherboard does not support USB3.0. So the author is inflexible, unrestrained, and tried his best to test the speed of the next two mobile hard drives under the USB2.0 socket. In order to get closer to actual combat, I chose the USB 2.0 socket on the chassis.

1, as with the above test, first test with HDtune

This is a test result of a mechanical mobile hard disk, and it is also four aspects, benchmark, random access, additional test and file benchmark.

This is the test data of the SSD mobile hard disk. After comparison, it is found that many important data are similar.

2, FASTCOPY combat test

Still the same movie above, the test results are as follows:

Here, there has been an amazing reversal of the situation. The speed of SSD copy files is actually slower than that of mechanical mobile hard disks!

Fourth, not to write a summary, another additional test

In view of the author's chassis is NZHT H2, I decided to add a chassis top hard drive swap speed test. Unfortunately, I am not a qualified trash, and there is no spare hard disk at home. So, I took out the secret weapon - the ThinkPad X201t, and removed a hard drive from it to experiment!

Real hard disk, to reveal a face.

Chassis on the top of the chassis:

Shutdown, insert the hard disk, boot, start the test.


Hard disk information, and testing of HDTUNE

It can be seen that the speed gap between USB3.0 and SSD mobile hard disk has narrowed. Some parameters, such as the burst transmission rate, exceed the SSD, so what is the case in practical applications? Continue testing with Fastcoy's copy blusher.

It can be seen that there are still many differences between the SSD mobile hard disk and the 170MB/sec in the USB3.0 mode, but it is much faster than the mechanical one and much faster than the two mobile hard disks under the USB2.0 socket.

V. Conclusions and Suggestions

Sincere newbie, to learn the life experience from the old driver, you need this:


If the financial resources are limited, in summary, the mechanical hard disk's mobile hard disk is the most cost-effective and convenient. Because after all, not every old driver has a USB 3.0 motherboard, not every old driver chassis has a hard disk slot. At the same time, I also propose that on the basis of having a large-capacity HDD mobile hard disk, we should always prepare an SSD mechanical hard disk to prevent the emergence of some fine resources, and the old drivers are in the market. At this time, speed is time. In time, it is impossible to buy a daughter.


Outdoor LED Curtain Display

Specific features of Grille Curtain LED Display

What is grille curtain LED Display Screen? grille curtain LED Display screen is made up of several pieces single led strip. It is a LED screen which looks like a grille and now become more and more popular among the LED industry. It can be called like strip Led screen. Since it shows us a hollowed-out , meshy visual effect, so LED display experts also call it mesh LED screen. This type of outdoor led screen mainly apply for wall of outdoor, glass wall, top of buildings, Column ads and led Curtain and so on.

Cross-time design of grille curtain LED breaks the limitation of traditional LED display for buildings and walls, makes the assembly project easier and selective. Maybe that is the reason why it can be used widely among all the field. Now let`s CATA editor introduce some technical advantage and how it makes the led screen project easier.

Grille curtain LED Screen technical feature❶ Light weight and anti-wind

Grille curtain LED Screen technical feature❷ High energy efficiency and low consumption

Grille curtain LED Screen technical feature❸ High integrate design

Grille curtain LED Screen technical feature❹ IP67 protection level

Grille curtain LED Screen technical feature❺ easy assembly and maintenance



Led Video Curtain,Large Led Curtain Screen,Media Led Grid Display,Custom Curtain Led Display

Shenzhen Priva Tech Co., Ltd. , https://www.privaled.com

Posted on