As a student, the USB flash drive plays a very important role in my life and learning: copying PPT used by teachers in class, copying large documents from classmates' computers, carrying important data files to the print room to print, etc. Under these circumstances, I always carry the USB flash drive with me. With the rapid development of online storage, instant messaging and fast paced development, I want to talk about the importance of this basic USB flash drive through this DM USB flash drive, and whether it is meaningful to buy through this winged USB flash drive - WIFI wireless transmission.

I apologize first. I failed to complete the task within the specified time due to various reasons. I have no time until now. I hope you will punish me. In this article, I will try my best to provide you with a good evaluation experience and shopping guide.

The DM USB flash drive packaging box is small. The black box body and the box cover are nested open and close. The "DM" gilded logo on the front is eye-catching, but from the front alone, there is no sign of "this is a USB flash drive". However, such a simple style is right for me.

The amount of information on the back is better. About the product capacity: 32GB; Contents of USB flash disk: 4K HD playback, 5G wireless transmission; The anti-counterfeiting scratch layer, two-dimensional code and Shenzhen Liangxin Technology Co., Ltd. can find traces of all the information about these products on the back. After talking for a long time, we'd better see what the essence of this winged USB flash drive is. Let's see below.

DM accessories are clear at a glance: product manual, charging data cable, Liangxin Technology Logo paper. It would be great if you could attach a storage bag. After all, I always like the storage bag of these gadgets.

It is mainly white with gold fringe. The round button on the upper left makes it look particularly cute. The light material makes it plastic, but what else can you ask for? A grinning horse at the bottom right should be the most impressive feature, but I pay more attention to the words "I'm afraid of myself when I run". Can I really praise it? Let's wait and see.

APP QR code, USB flash disk model The capacity, battery capacity and input power of the USB flash disk are all displayed on the back of the USB flash disk. In fact, I think it's better to show this information in the packaging and instructions. Wouldn't it be better to leave a clean white on the back of the USB flash disk?

It's necessary to tell the truth here. The gold color matching non plastic material of the frame is really poor in workmanship. It feels full of cheap, and even the direct appearance of the plating color is uneven, let alone the feel. It would be much better if it were made of metal materials, with perfect workmanship and careful details.

The USB socket looks more obvious here. The rough texture makes me think that it has been used countless times. To be honest, if I buy such a product, I will definitely return it. Sizzle~~~

Press and hold the power on key for 2 seconds, and the circle around the key turns blue, which is the prompt for DM to enter the 2.4G band. Press again to switch to the 5G band of the green flash, which is convenient for users to choose.

The back was scratched carelessly during use, and the white color looks particularly obvious. Fortunately, it does not affect the use. Fortunately, it is not an important object.

The troubleshooting in the product manual carefully lists the possible problems in use, but for us digital enthusiasts, the manual is always the last thing we need.

In fact, for a USB flash drive of this size, whether it looks good or not is not what I care about, because it is not a product like a mobile phone that is no longer in my pocket. Rather than focusing on its appearance, I care more about whether it is powerful. For example, "I am afraid of myself when I run" makes me look forward to it.

In terms of usage, the 32GB capacity is displayed as 29.3G/29.4G on the computer side after formatting. Compared with the 32GB advertised by various mobile phones, which is only 26GB, the DM USB flash disk is much more honest.

When formatting, you must select the "NTFS" file system option, because the default option "FAT32" cannot exceed 4GB for a single file, while "NTFS" does not have this constraint, which is really beneficial to me who often copies large file packages. Moreover, if there is no special reason for formatting, please select "Quick Format", otherwise it will waste more than an hour. Quick format only deletes the files on the drive, and does not rewrite the disk sector. You can restore files by means of.

The following is about the test of transmission speed. If you use software to test, you really have no idea. It's not as intuitive as copying files directly. First, connect and transfer in common form, using USB and computer direct plug. The tested objects include DM wireless USB flash drive, HP USB flash drive, 360 mobile phone N4. Copy a 1.77GB, mp4 format video file to the above device. The transmission time is as follows:

360 mobile N4: 1 minute 50 seconds

HP USB flash drive: 4:29

DM wireless USB stick: 3 minutes and 14 seconds

It can be seen that the 360N4 is more than half as fast as the other two USB flash drives because eMMC5.0 storage is the best. I was a little disappointed by the performance of DM3 for more than three minutes. My daily use of the USB flash drive is to copy files from other people's computers to my computer. This speed can't really satisfy me.

Next, test the transmission between the USB flash drive and the mobile phone to see the data:

OTG direct connection between mobile phone and HP USB flash drive: 4 minutes and 36 seconds

2.4G band between mobile phone and DM USB flash disk: 5 minutes and 25 seconds

5G band between mobile phone and DM USB flash disk: 6 minutes and 18 seconds

How can I say? I'm surprised by the speed and efficiency. I don't ask you to be faster than the OTG direct connection, but at least not so slow. As the saying goes, "I'm afraid of myself when I hurry up". It is worth noting that the DM USB flash disk has a good heating condition both in wired and wireless transmission, while the ordinary USB flash disk has a horrible heating condition, which I am more willing to accept. Also, the WiFi settings of Android phones are all 2.4G direct connection by default, so when linking 5G frequency bands, pay attention to setting the WiFi frequency band to automatic, otherwise, just like me, I will be fooling around in the WIFI list.

For online play, DM supports almost all commonly used image, music, video, and document formats, so it is a great tool for TV viewers. Android users can easily copy from the computer or download from the mobile phone. However, Apple users are more painful, and can only install their favorite TV dramas through the computer. Take video playing as an example. Click on to play, and the buffer time is less than 2 seconds. But I noticed that dragging and fast forwarding will cause obvious stuttering, and the picture quality has obvious discount defects. It is more convenient and direct than directly storing it in the phone. On the question of 4K movie playing, I said: Before the popularity of 4K movie sources, I felt that 1080P had fully met my requirements for video quality.

In terms of APP use, major markets can download this "DM Cloud Disk Pro" APP, press the USB flash drive switch and connect the mobile phone to the WIFI under the USB flash drive to start use. "Cloud Disk Pro" has well shouldered the task of sharing memory worries for mobile phones. After the automatic backup of mobile phone files is enabled, at least the contents in the image library can be backed up, which can also save a lot of storage space for mobile phones.

Worried that the mobile phone cannot use the wireless network after it is linked to the WIFI under the USB flash drive when transferring files? Needless to say, DM takes this into account for users. After connecting to the Internet, two WIFIs are connected at the same time, and no one delays another. With regard to power consumption and charging, I think so. Unlike a mobile phone, this wireless USB flash disk is an object that needs to be with me all the time, so I don't care about the charging time at all. The battery power is 1400maH, which is absolutely enough for people like me who don't often watch videos. The manual says that he can play videos for 6 hours continuously, I am very satisfied with such a large capacity in such a small space and such a long endurance.

Classification management under the APP, and automatic classification of videos, pictures, music, and files. Don't worry about clutter. In addition, the DM wireless USB flash disk supports multiple APPs to jointly manage the same USB flash disk, thus saving the space of the iPad.

SUMMARY:

To sum up, which one do you choose between the 10 yuan OTG cable+50 yuan USB flash drive and the 150 yuan wireless USB flash drive? Of course, for me, trying new products is my attitude towards digital products, so I will choose once. But for most people, what reason can they choose other than new products? What's more, it's OK for Android users. They can not only back up photo albums of mobile phone galleries, but also cache video files. However, Android users can basically plug in and expand SD cards, so the advantages of DM will disappear. Why choose an external, relatively expensive, offline USB flash disk when there is a cheap, built-in SD card? DM is troublesome for Apple users: download to the computer - transfer to DM - use the mobile phone to open the file. This process is really cumbersome, and is limited by IOS, so its versatility is not high. Therefore, it is more practical for direct connection users of Android. If you still follow the drama party, it will be more practical.

Speaking of this, I think that whether to choose the DM wireless USB flash disk is not a matter of selectivity, but a matter of acceptance: I am willing to try this new connection between the USB flash disk and the mobile phone, then I will buy it if OK, but if my mobile phone thinks that there is an expansion SD card and OTG cable, why do I need this thing? In this way, there is really no need to choose. But I still think that new things are the driving force to change our existing interaction methods. From Bluetooth to WIFI, we are constantly working hard and innovating, which is very important.