With the advent of the era of ZB storage, we have truly seen the explosive growth of data storage, as well as the impact of data on all aspects of social life. Internet of all things makes us feel the charm of intelligent life. Terminal devices such as home security cameras, intelligent speakers, car recorders and so on are now very popular in our daily life, bringing us a lot of convenience, but behind these conveniences, we cannot do without the support of various technologies.
Among them, storage is a very important part. Because these devices will produce a lot of data after we use them, only by storing these data in the machine, they can work normally, so the performance of the storage device is very important.
Recently, we evaluated a max endurance card (professional high endurance memory card) of Sandi, which is developed by Sandi for professional users and is positioned in the fields of home security, automobile monitoring, etc., with features of reliability, durability, and ultra long quality assurance. According to official data, the memory card is waterproof, vibration proof, X-ray proof and can work in the extreme temperature range of - 25 ° C to 85 ° C. The three limit tests verify that the product features are familiar with the memory card. All the friends know that in order to avoid data loss or memory card damage, generally the memory card should not be used or stored in the "three high" environment, "three high" refers to high temperature, high humidity and high magnetism. So the performance of the memory card in such scenarios is very important. Let's take a look at the performance of this memory card in the "three high" environment.
First of all, we use microwave oven to simulate high temperature test. In the high-temperature test environment, we heated the Sandi memory card for three minutes, reaching the maximum temperature it can withstand 85 ℃, and after taking it out, the appearance of the product is still unchanged. The next step of the simulated high humidity test is the humid environment test. We soak the memory card in the humidifier with 70% humidity for 24 hours, dry it and take out the product. Because the use of high magnetic environment is not common for ordinary consumers, we will not test it.
In fact, in addition to the "three highs" in the simulated severe cold test, the reliability of the memory card is also highly required in the low cold environment, so the last test we do is the simulated severe cold environment test. We put the memory card in the fridge, set the temperature to the lowest acceptable temperature, minus 25 degrees, and then freeze it for ten minutes. After reaching the test time, the product is still in good condition.
The performance test is stable as before. After the completion of the three limit tests on this memory card, we conduct performance tests on this product again. The performance tests are divided into theoretical performance tests and actual use environment tests. After the test, add the previous results for comparison, and finally show the reliable and lasting product features of this memory card through the test results comparison. The first is the theoretical performance test. In this test, we will use crystal disk mark, Atto and txbench to test. Comparison of CDM test results (before the limit test on the left and after the limit test on the right, the same below) through the comparison chart, we can see that in the two crystal diskmark tests, the maximum continuous reading speed of this SanDisk Max endurance card has reached more than 98mb / s, and the continuous writing has also reached more than 79MB / s, so the test results are completely consistent with the official nominal results. Even in such a vicious environment, this memory card can perform so stably, which also reflects the high stability advantage of this product. Atto test results comparison in Atto test, the performance of this memory card continues the stable performance in the previous test. We can see that the speed of two consecutive reads is basically maintained at 98mb / s, while the write speed is about 80mb / s, which is still relatively stable. We know that the biggest advantage of Atto is that it can simulate and measure the performance of products under different dimensions of data, so it has a strong reference significance. This memory card can maintain this performance in both tests, so we don't need to worry about its product performance. In the final test of txbench test, we use txbench to carry out the test. In this test, we can see that the performance of this SanDisk Max endurance card is still stable, the continuous maximum read speed is maintained at about 98mb / s, and the maximum write speed is about 78mb / s. The performance is also excellent as the previous two tests, further proving the reliability of this product.
In order to further verify the performance of this product, in the actual application test, we also use the file package with the size of about 10GB to perform the write test, so as to show the real performance of this product.
Comparison of actual write test we can see from the comparison chart that in the two actual tests, SanDisk Max endurance card has been stable at about 70mb / s, the whole write process is very stable, there is no large drop in speed, and the overall performance is still excellent. In the case of continuous writing 10GB, it can perform like this, but we don't have such a large demand for data writing in our daily life, so it can well meet the demand of our daily driving recorder, security monitoring and other writing scenarios. We can see from the above tests that the product is destined to be strong and strong by the technology support. In addition to the high performance, the performance of the professional high durability memory card of SanDisk is also outstanding in terms of durability and reliability. This is mainly due to the advanced design process of SanDisk and the endorsement of the original flash memory, so we can have such performance. The 256gb version even enables 12000 hours of continuous data storage, with a maximum warranty of 15 years. The extremely high durability and performance make this product easy to face many use scenarios. Recently, there are small partners who need to buy memory cards. I don't think you should miss this Sandi's max endurance card.