Dahua is one of the best international brands in the world. We first met Dahua in the field of security, and our big screen system was made by Dahua. In recent two years, Dahua has a very high market share in the storage field with its huge market and service network. This Dahua NM high-speed memory card adopts the same size as the mobile phone Nano SIM card, and has passed Huawei's patent authorization, honorably supporting Huawei's mobile phones, tablets and some models. Let's take a look at its performance.
The Dahua NM high-speed memory card received this time also comes with a thermos cup, but it is cold now and warm in an instant. In addition, in order to facilitate the evaluation, the two-in-one card reader sent by Huawei platform is also quite powerful.
Through the brochure Dahua Storage, I also learned that Dahua's storage products are very comprehensive. The model of Dahua NM high-speed memory card used in this trial is N 100. There are three versions to choose from: 64G, 128G, 256G. Now I try the highest version of 256GB.
This is another family photo of the product. This thermos doesn't look very good. However, the focus of this product is Dahua NM high-speed memory card, so I won't introduce it much.
The packaging of Dahua NM high-speed memory card is basically the same as that of ordinary TF card, and the front of the card is made of plastic transparent packaging, so you can directly see the front of the product. From the information on the package, we can also see that the reading speed of the memory card is 90MB/s, which is equivalent to the speed of U3 TF memory card.
Remove the memory card from the package. This plastic bag turned out to be a storage box. This can be stored for the newly replaced SIM card.
Dahua NM high-speed memory card adopts white and red color scheme, and the product looks very textured. There is still a difference between the metal contact on the back and the SIM card.
The installation of the memory card is very simple. Just install it on the Cato together with the SIM card and insert it directly into the mobile phone. It should be noted that this memory card only supports Huawei and HONOR. Please check whether the mobile phone supports it before expansion.
After installation, you can automatically identify Dahua NM memory card by turning on your mobile phone. I won't say much about the settings related to mobile phone storage here. I saved the internal storage of the mobile phone below 80% by transferring, and then set the default storage location as a memory card. In this way, I will not be afraid that the memory of the mobile phone is not enough in the future, which is not the same as that of a mobile phone with high cost performance.
First, I used CrystalDiskMark, a hard disk detection tool, to test the reading and writing speed of Dahua NM memory card. It can be seen from the measured results of the software that the maximum reading speed of Dahua NM memory card reaches 94.55MB/s and the writing speed is 84.48 MB/s ... This result is slightly higher than the official maximum speed.
Below we measure the transmission speed of Dahua NM memory card through different types of files. Here I mainly use commonly used video and picture files to test. When transferring files from the computer to the memory card, the speed of the two files is not much different, which is basically above 75 MB/s, and the file transfer process is very stable, including the transmission of multiple picture files, and there will be no intermittent situation. This should also show that the performance of this Dahua NM memory card is still excellent.
In addition, when transferring files from Dahua NM memory card to computer, the transfer speed is obviously much higher, which is basically stable at 88MB/S, close to the standard value of 90 MB/s. I am quite satisfied with the measured file transfer effect. This storage speed can be easily stored even in high-speed continuous shooting when taking photos with a mobile phone. In particular, the measured file transfer process is very stable, and the reliability of data storage should not be bad.
Summary:
Now I choose Dahua NM memory card as the default storage location of my mobile phone. After this period of use, my mobile phone runs smoothly without any hint of insufficient memory. In addition, through the test, Dahua's NM memory card has excellent performance in reading and writing speed and stability, and it also allows me to store important data in the memory card with peace of mind. If you are Huawei or HONOR and have the same experience as me, you don't need to change Dahua's mobile phone with NM memory card.