Huawei Mate flagship expansion tool! Getting started with Lexar 512GB version NM memory card

As a standardized product launched by the Intelligent Terminal Storage Association (ITMA), the NM card has become an ideal storage expansion medium for mobile phones of Huawei, Honor and other brands. Its biggest feature is its miniaturization, which matches the size specifications of the Nano SIM card. Therefore, it can be installed into the Nano SIM card slot that is suitable for mobile phones, and it can become a powerful assistant for shooting and creation for some users who do not need the dual-SIM function.

Previously, the maximum capacity of NM cards was only 256GB, which was relatively limited for mobile phone expansion. Larger capacity will improve the practicality of this type of storage products and stimulate users' functional needs.

In front-end time, we experienced Lexar’s newly launched NM memory card 512GB version, which can store up to 88,000 20-megapixel photos, or 530 minutes 4K resolution video brings excellent expansion cost-effectiveness to this type of mobile phone with excellent image performance.

The outer packaging design of Lexar NM memory card adopts the simple style design common for memory cards, including the classic shelf hanging hole on the upper part. It centrally prints product logo, capacity, main performance features and other information on the front of the package, and embeds it in a transparent plastic package containing the memory card body, making the whole thing clear at a glance.

#The surface of the NM card continues to adopt the black and white color separation style of Lexar professional storage products, with clear product information such as capacity and speed printed on it.

During the same period, we also received Lexar’s NM memory card 2-in-1 USB 3.1 card reader. The 2-in-1 card reader is compatible with NM cards and The dual slots for MicroSD cards and the dual-port design of USB-A and USB-C not only serve as a good partner for NM cards, but can also adapt to most users’ MicroSD card reading and writing and device interface needs.

Entering the performance measurement phase, the first is a theoretical test based on the PC-side storage speed measurement software, using CrystalDiskMark, AS SSD Benchmark and ATTO disk benchmark. The results are as follows:

In the CrystalDiskMark test, the Lexar NM memory card's continuous reading speed reached 94.35MB/s, and the continuous writing speed reached 87.31MB/s, exceeding the nominal 90MB/s reading and 85MB/s. s write performance level.

In the AS SSD Benchmark, the measured continuous read and write speeds of the NM memory card reached 89.87MB/s and 83.00MB/s, which are also good performances.

In ATTO disk benchmark, Lexar NM memory card has a wide range of "full blood" performance coverage, up to 90.14MB/s read and 83.39MB /s write.

When the NM card standard was formulated, the goal was to achieve a writing performance level no lower than SD V3. From our actual experience, it undoubtedly far exceeds this basic standard and can reach V60 or above. The performance level is enough to meet the high-quality video shooting needs of mobile phones.

So how does it actually perform on a mobile phone? Let’s experience it with the Mate X5 Collector’s Edition on hand.

The first is the imaging function. In the camera settings of the mobile phone, we can choose to save the captured pictures and videos to the memory card first, and then conduct high-quality picture and video shooting tests. However, in the phone settings, high-speed continuous shooting can only save photos to the built-in storage, so we chose to shoot high-quality uncompressed 4K60FPS video for experience.

The video information displayed by the software can be seen. The 4K60FPS video shot by the Mate X5 Collector's Edition has an average bit rate of about 30,000kbps, and the video size of only 2 minutes and 9 seconds has reached 475MB. , tests the writing performance of the memory card, and the Lexar NM memory card can be said to perfectly meet the requirements.

We can also use the backup and recovery in the phone settings to use the external memory card as a backup space for important files and application data to improve data security. For business users common with Huawei and Honor brands, this should be a feature of high practical value.

Finally, there is the content caching function of common video and music software. Lexar NM memory cards are naturally capable of such tasks easily. You only need to set the default cache directory to the memory card in the software.

Summary

Most of the current mobile phone products have said goodbye to external storage slots and have also lost the option of convenient expansion. The uniqueness of NM card lies in the use of Nano SIM. This kind of slot still exists in large numbers, bringing one more choice to this part of the user group.

With smaller size, higher storage density and appropriate performance, Lexar’s newly launched 512GB large-capacity version can be said to further enhance the practical value of this form of storage expansion and is worthy of Huawei and Honor mobile phone user experience.

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