SanDisk Extreme Pro V30 A2 microSDXC UHS-I U3 256 GB

First player to get ready

SanDisk is like an Italian don sitting at the head of the table with other players in the flash memory market. It was SanDisk who once came up with the microSD format, which has become an industry standard, and it is she who is responsible for many of the breakthrough technologies in this matter. The prefix Pro in the name of this card was inserted not just for a red word. Theoretically, this is one of the fastest options in the microSD class.

The King of Synthetic Tests

Given that the topic of the day is photography and video, let's start with the linear speeds for reading and writing. The card allows you to read information at speeds up to 170 Mbps. The write speed can reach up to 90 MB / s. At least, such figures are given by the manufacturing company in the model passport. But there is one caveat: the company's website says that in order to get a speed of 170 MB / s, you need "devices of the appropriate class." For example, a branded card reader. In all other cases, the speed will hit the ceiling of 95 MB / s. That is, there are not so many techniques that can fully sing with this card. But it belongs to class A2, thanks to which the smartphone will work at the speed of internal memory. But other cheaper cards can also do this, so buying it purely for a smartphone is a dubious idea.

Stability and reliability

Now back to the positive news. First, the SanDisk Extreme Pro proved to be very stable in terms of speed. There were no drops or drawdowns even after prolonged stress tests. For professionals, this is extremely important. Equally important is reliability, with which SanDisk is also in full order. On specialized forums, their durability and longevity are often praised. And even if the card fails, data recovery is easier and more efficient than when cards from other manufacturers break down, and a lifetime warranty will cover all the inconveniences.