The rise and application of smart phones, drones and driving recorders and other devices have promoted the rapid development of high-speed flash memory cards, and flash card products with higher performance, larger capacity and more adaptable to complex environments have gradually replaced the low-end and cost-effective products that have become the absolute protagonists of today's flash memory card market.
However, the distress is that conventional products and high-end products often do not have much difference in appearance, more in the distinction between various standard protocols such as C10/V30/U3, but what do these standard protocols represent behind them? What is the reference significance for ordinary users to purchase flash memory card products? Today, we're going to disk a flash memory card on those mysterious protocol standards.
Memory card various protocol standards
Through a simple observation, the main speed protocols for today's high-end flash memory card products are C10/U3/V30, and a speed indicator such as A2 applied to smartphone devices.
01C10/U3/V30/A2 What the hell is it
C10, the full name is Class 10, which means that the memory card has a minimum (continuous) write speed of 10MB/s, which is actually a more entry-level storage standard, which originates from the design specification of SD2.0, in which there is a clear distinction in the performance of the SD card, CLASS 0, that is, C0, including cases below CLASS2 and not marked SPEED CLASS; CLASS 2, that is, C2, needs to meet the needs of watching ordinary MPEG4 MPEG2 movies, SDTV, digital camera shooting and other needs; CLASS4, that is, C4, requires the memory card to be able to smoothly play high-definition television (HDTV), to meet the needs of digital camera continuous shooting, and the highest level OF CLASS 10, that is, C10, to meet the storage needs of higher rate requirements.
Memory card gold finger
U3, fully known as UHS Speed Class 3, is almost consistent with the C10 standard, and is also a metric parameter used to measure the performance of memory cards, U3 represents the minimum write speed of more than 30MB/s, which is usually placed with C10 and presented together.
V30, can be understood as a performance standard for the memory card processing video speed, and C10 is similar, V30 represents that the memory card can meet the minimum 30MB/s write speed, at this stage of consumer high-end memory cards are mostly V30 level design, of course, more vertical segments of the memory card also has design standards including V60/ V90 and so on;
A2 protocol
As for A2, it is a standard for mobile phone memory cards, APP Performance A1 (A1) and APP Performance A2 (A2), their minimum (continuous) write speed is 10MB/s, but the random read and write performance requirements of the A1 standard are 1500 IOPS and 500 1OPS or more, respectively, while the A2 standard is greatly increased to 4000 IOPS and 2000 IOPS, higher memory card standards, It is conducive to improving the response speed of mobile APP and optimizing the smoothness of mobile APP.
Of course, in addition to these mainstream speed standards, the core materials and brand precipitation of flash memory card products are also important factors that determine the physique of the product.
02Why choose Samsung PRO Plus memory card
As an absolute giant in the semiconductor storage industry, Samsung brand storage in recent years in the field of relatively weak flash memory cards, achieved a new breakthrough, and this autumn officially released its new PRO Plus series of TF card products, the product is positioned in professional digital users, in terms of specifications, breaking the previous mainstream standards, from the benchmark reading and writing standards to video standards, are following a higher level, fully supporting the U3/V30 consumer level of the highest standards, while in order to further extend the application scenarios of TF cards, The Samsung PRO Plus TF card also supports the A2 protocol, which can further accelerate the reading and calling of smartphone apps.
New series
In addition, the built-in Samsung original flash memory particles, as well as self-developed master control, end-to-end optimization, so that the Samsung PRO Plus TF card has a continuous reading speed of up to 160MB/s, can easily be compatible with full 4K ultra-high definition video recording, up to 512GB storage capacity, can help users store more high-definition video and higher resolution photo material.
A gift card reader is included
More importantly, the Samsung PRO Plus TF card also has 6 layers of protection, 10,000 insertion and removal design, and a limited warranty of up to 10 years, which relieves you of all worries about your free creation.
On the day of the author's deadline, Samsung PRO Plus series memory card products will also usher in a new round of preferential price reduction activities, including TF cards, many excellent memory card new products will participate in it, and friends who have memory card needs in the near future can pay attention to a wave.
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