SanDisk 128GB Ultra Fit USB 3.1 Flash Drive - SDCZ430-128G-G46

Over the last eight months, I have purchased 14 of these drives. The failure rate as of today is FIVE out of 14. Nevertheless, when I say they failed, they have not lost their data; You cannot mount them simply because they are locked. In a telephone call with Sandisk, I was informed that this is a "safety feature" to safeguard that my data would not be lost. How does it protect my data if I cannot access it? It appears that Sandisk can only offer me the option to replace the drive, or I can hope to have the data recovered by sending the "failed" drive to a third party and paying $50 per service. This is not a solution! After taking note of when and how the problem occurs, it appears to be caused by moving large blocks of files from one of the Sandisk drives to another. The USB drive begins to vanish from my desktop at some point when an error message appears saying it cannot be read and cannot be copied. You cannot use the computer's disk utilities to mount it or read it in another USB port no matter how many times you move it or attempt to mount it that way. If you're hoping to move files around using this, do not buy it. It's locked and cannot be opened!

Don't buy it! The temperature rises on them too much, triggering the "safety feature," which then prevents you from logging in. I am deeply disappointed in Sandisk's response to this issue and with this "safety feature. ". The last time I bought anything from Sandisk, I gave up!.

Natalie FINCH

| Feb 28, 2021

This model comes with 256GB of storage. There is a lot of capacity. It is great to have a small profile. There is a claim to read 130MB per second. The following notes are important. . . There has been an increase in write speeds of up to 15X over USB 2. It allows me to store flac music files for playback in my car.

This device is UP TO the task. USB 2, 3 & 4 are all connected to this drive The port used for writing has one port. USB3 and USB2 perform almost identically for me Writes anywhere from 200MB to 2GB at a time. (Fluctuates between 35 and 55 MB). Using a USB 2 port, I am able to get speeds of around 20 MB. In a few days, I will post test results and adjust figures as necessary, as at the moment, I am only going by memory.

On the other hand, the frame of this does not seem to be so durable. Composite materials would be what I would describe this material as being made of. As the manufacturer, I think they took this step to address the heat issue with the previous model (which I also own). While it still gets hot when writing, it does not get hot to the touch like it did with the previous model. It is much quicker to dissipate heat. This means that I am concerned about the durability and longevity of this device if it needs to be plugged in to many devices frequently.

In general, I find it to be useful. There is a possibility that the speed and durability of the device could be improved. This is why I rated it three stars. *********Edit**************************************************I have included Crystalmark tests (1 @ 500MB in size for USB 2 and USB 3. In order to test it, I had the USB 3 cable plugged into it and connected to it. (1 Gen 2 port, 1 each at 500MB, 1GB, 2GB, 4GB & 8GB A 8GB hard drive). As the file size increases, speed starts to fall.
For those who are wondering, speeds for each image are as follows:
USB 2.
USB 3. Reading 40 images at the speed of 0 is equal to 40 read speeds. The 22nd and 23rd An average of 17 words per minute. The USB 3 port can be found in port 01*. There is no image 126 because there is no read speed. The following two formulas are equivalent. I am writing at 50 words per minute. The USB3 connector measures 41
. These are the other 5 gen 2 images, as well as the windows copy images.

Just for a test, I copied a video file approximately 4GB in size to the drive. There is only one gen 2 port (see "Windows copying images"). After half of the file, the speed dramatically drops off and is never recovered. There is evidence of the video file maintaining a good 64 MB up until the halfway part.

Abdullah Solomon

| Jul 04, 2021

There are pros to this. There are pros and cons to this. The pros are the size, and it doesn't get too hot like the metal one. Plastic paper thin is used for making it. A part of it fell out of the only USB port on my Surface Pro. To fish the piece out without damaging the device was quite difficult.

I would only recommend this if you think that you need to leave the software on your computer for a long time. As someone who wants to transfer files from machine to machine, I encourage you to look elsewhere for a portable device.

Kenna Weber

| Jul 19, 2021

The plastic is really annoying. This crack started appearing after constant use in my laptop, and it eventually broke. The pieces were embedded in the ground so I had to use a blade to take them out. My future drives will all be metal drives, as I am not satisfied with the current setup.

Kamila TOMLINSON

| Apr 07, 2021

Plus one). Don't think twice about it. Just plug it in, format it, and you're done. Their work has always been excellent and they have always done a great job. Three of these new models (the 256GB) arrived just now and we noticed that write speeds were extremely slow. In System profiler, it is easy to see that this new model often defaults to USB 2. The old model activated fully-speed every time it was inserted, but the new model frequently switches back to USB 2. This means there is no speed. Our team has tested all three drives, and the issue occurs with them all. It is impossible to see ourselves keeping all three of them if we didn't need the 256GB of storage in the tiny form-factor. of right now, the performance issue should not be a major problem (they usually contain a large number of relatively small files), but if you are going to require reliable USB 3. 0 ports, this may be a problem. You might want to consider another provider if your cable modem has 0 speeds.

Charley Hatfield

| Jun 26, 2021