SanDisk Extreme PRO USB 3.1 256GB

Advantages: 1. High read and write speed, especially small files.
2. Built on the pSSD controller, it has a wired SSD form factor 1.8 inside, that is, in fact, it is an ssd drive with a USB output.
3. Type of flash memory here - MLC (as in Transcend 730, 750, 780, Kingston HyperX Savage, Kingston DataTraveler Ultimate GT, Mach Xtreme Technology MX-LX, Silicon Power Blaze B50, SP Marvel M70 32GB ASM1142, Netac Z2 and several other less popular or missing in the sale), that is, a very durable and expensive type of memory, therefore this flash drive can easily outlast its owner without any problems, with proper care of it.
4. The size of the physical / logical sector on this flash drive is 512/512 bytes - which corresponds to the sector marking format 512N.

Disadvantages: 1. The built-in controller does not allow to see:
-the remaining lifetime of the drive
- current storage temperature
- amount of recorded / downloaded information
2. After the release of the USB 3.1 standard, the USB-IF organization announced that USB 3.0 connectors with speeds up to 5 Gbps (SuperSpeed) will now be classified as USB 3.1 Gen 1, and new USB 3.1 connectors with speeds up to 10 Gbps (SuperSpeed USB 10Gbps) - as USB 3.1 Gen 2. Therefore, inside the drive is a 10 year old USB 3.0.
3. Strong heat with prolonged use of the drive.

Comment: After buying a drive, I advise you to format a file system with 128 Kb sectors in exfat, initially the drive is also formatted in exfat only sectors are divided into megabytes, which makes sense only for storing fat megabyte / gigabyte files, and all small files (in kilobytes or bytes) will occupy those megabytes and spend precious space on the drive idly. For example, the folder with the game Counter Strike 1.6, which weighs 600 megabytes, occupies 7 gigabytes on the flash drive when formatting by default, almost 6.5 gigabytes spent on the air.
Today it is the fastest flash drive in the world, built on the MLC type of memory, therefore it is the best flash drive in the world, not only in speed, but also in durability. I advise all GIKS and people for whom information storage is not an empty sound.
Attach a couple of photos of the device live.

Advantages: 1. Sizes
2. Speed:
Through USB 3.0 - the flash drive is not empty - I've been using it for half a year already!
-----------------------------------------------------------------------
CrystalDiskMark 5.1.1 x64 (C) 2007-2016 hiyohiyo
Crystal Dew World: http://crystalmark.info/
-----------------------------------------------------------------------
* MB / s = 1,000,000 bytes / s [SATA / 600 = 600,000,000 bytes / s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q = 32, T = 1): 323.611 MB / s
Sequential Write (Q = 32, T = 1): 286.111 MB / s
Random Read 4KiB (Q = 32, T = 1): 11.762 MB / s [2871.6 IOPS]
Random Write 4KiB (Q = 32, T = 1): 7.696 MB / s [1878.9 IOPS]
Sequential Read (T = 1): 365.961 MB / s
Sequential Write (T = 1): 280.584 MB / s
Random Read 4KiB (Q = 1, T = 1): 9.694 MB / s [2366.7 IOPS]
Random Write 4KiB (Q = 1, T = 1): 6.885 MB / s [1680.9 IOPS]

Test: 4096 MiB [H: 18.8% (44.8 / 238.5 GiB)] (x3) [Interval = 5 sec]
Date: 2017/09/30 15:31:44
OS: Windows 10 Enterprise [10.0 Build 14393] (x64)
3. Assembly, materials - excellent!
4. It is convenient to hang on the keys.

Disadvantages: 1. Small volume, I would like to 1-2tb.
2. With prolonged use is heated.

Comment: IMHO the best flash drive to date.

Advantages: Speed

Disadvantages: Not yet revealed

Comment: The very high case temperature of at least 50 degrees in the operating mode is alarming.

Advantages: Speed.
Form factor - fixed USB plug.
Volume.
Compatibility - while read everywhere without problems. Works great with easy2boot (for those who understand ;-))

Disadvantages: A little heated.
The first copy came defective (the controller is visible, no memory is visible) - the seller replaced the product, for which he respects ✊

Comment: Satisfied with the purchase. 128GB to 3.1 compact fast mobile drive

Advantages: I use for two weeks.Every day we have to repeatedly refer to the information placed on the drive, everything works well.

Disadvantages: Not yet revealed.

Comment: Enough convenient and functional drive.