Modern Internet technologies are gradually replacing external storage media, giving users the ability to save any information in the “cloud”. However, it is still too early to speak of the death of USB keys. Every owner of a computer or laptop should understand the parameters of an external drive and know all the methods available to check the operability of this USB device.

What is the write and read speed of a flash drive?

In twenty years of evolution, external memory cards have radically changed in terms of their characteristics. If the very first USB 1.0 and USB 1.1 flash cards had, according to official information, a bandwidth of 1.5 to 12 Mbps, today version 2.0 is already outdated, capable, according to manufacturers, of transmitting data to a speed of 480 Mbps. .

The real speed of USB flash drives with a USB 2.0 connector is much lower and does not exceed 30-35 Mbps. However, these external drives are still relevant for computer equipment with outdated ports.

However, for more modern computers and laptops, USB 3.0 memory cards with a data transfer rate of up to 5 Gb / s declared by manufacturers are more suitable. Well, the pinnacle of such devices at the moment are USB 3.1 and USB 3.1 / Type C external drives, the throughput of which, according to official information, can reach 10 Gb / s.

Attention!!! In fact, the read and write speed of a flash drive directly depends on the port design. In other words, when you connect a USB flash drive in 3.0 format to a computer with a USB 2.0 connector, which is quite acceptable, the data transfer rate will remain at the level of the outdated standard (usually 30-35 Mbps).

It remains to determine what the speed of reading and data transfer is:

  1. The first characteristic (reading) shows how fast the device is able to read the recorded information. This indicator on currently existing flash drives can be from 5 to 420 Mbps and above. However, if the “playback” is too quiet, users will not be able to watch movies and work with heavy applications due to constant crashes.
  2. The second parameter (write) indicates how fast the external drive can copy files. The real numbers here are anywhere from 2.5 to 380+ Mbps.

Therefore, the actual parameters of flash drives differ significantly from the characteristics that manufacturers assign to these devices. By the way, the problem of the amount of memory for a flash drive is also quite difficult. Therefore, owners of computer devices must decide for themselves whether it is worth paying too much for “memory”, even if almost 2000 audio tracks or about 6 movies can be freely placed on an external disk of 8 GB.

How to check flash drive speed

If the owner of the computer bought a “cool” flash drive, but is not satisfied with the speed of its work, he can always check his external drive in one of the available ways:

  • using third-party applications, the most popular of which are A1 SD Bench and SD Card Test (smartphones), Disk Speed, SD Card Speed​​and CrystalDiskMark (computers);
  • using Windows Explorer.

Let’s dwell on the last method in more detail. To test the speed through the “explorer”, you will need to download a movie to a USB flash drive, the volume of which must be at least 1 GB. During this operation, a “window” will appear on the screen of the device. ‘computer. We are looking for an item in this tab in more detail and go to this section, which indicates the write speed of the flash drive. True, these indicators do not differ in stability, but they give a real idea. It remains to compare these data with the declared parameters to answer the question about the performance of an external memory card.