Transcend 32GB JetFlash 790 USB 3.1 Flash Drive (TS32GJF790K),Black

This flash drive is great and for the price I paid for the capacity. I basically can carry around a few thousand songs and bunch of full HD movies in my pocket! Its amazing how much flash drives have advanced over the years. I used Black magic speed test to test the speeds. It clocked the read speed at around 120MB/s and the write at 80MB/s. To be honest it is pretty slower compared to my other drives but I will take that trade off because of the capacity.

My computer shows a 117 GB capacity for this 128 GB storage device. Thats a big chunk to be doing without. The speed of writing was nothing like what was described for a USB 3.0 device. Example: writing a 3.7 GB folder from my hard drive to the Transcend 128 GB JetFlash 790 (using one of my Dell desktops USB 3.0 ports). The speed wavered wildly. At 35% completion the slow transfer simply ground to a halt for 5 minutes showing a completion estimate of 45 minutes. Finally it started up again and finished at just shy of 11 minutes. I then deleted the folder and repeated the test, which took just over 4 minutes. I deleted the folder again and repeated the process on my HP Spectra x360 laptop. It took 5 minutes, 20 seconds with speeds wavering wildly from 0 bytes/s to 42 MB/s. The practical upshot of this is that I never know how long of a wait I am letting myself in for.

It saved everything I needed and was speedy. I bought another brand at the same time and that one failed and had to be redone while this one was efficient and worked as needed. The only negative was plugging it in to tight spaces on different equipment made the head slide in. I dont like the way it slides in and out. Because of tight spaces and other cables, I couldnt have two fingers on it when plugging it in so it would slide and I couldnt put pressure on it to plug in. Others Ive used I can just push in from the back end but that makes this one close up. You have to hold the slider open on the sides. Its hard to describe, but it made some applications difficult. When I was just using it on the front of my PC, it performed very well. Just transferring the info to other equipment was difficult.

I have 5 of these flash drives in different capacities and Ive been using them for a couple of years. They are very reliable and I havent had problems despite I usually do not eject flash drives properly. Im comfortable to keep all of my data from university in this flash drive(its always a good idea to keep backup though) and carry it around as I am confident it will not lose my data.

This is the second one for me. Hangs on my key chain and always available. Push out lock stops working after a while...I guess it wears out.

The USB 3.1 transfer rate is great. but the retractable USB male connector does not lock in place and must be held when connecting or it will retract back into the flash drive.

While doing an rsync with -v --progress, you will notice something. At first, these pretty much say, gimme, gimmie, gimme! Oh, heck...itll peak at over 100 megabytes per second, definitely USB 3 speeds. Then after a couple hundred megabytes, the transfer rate starts dropping. Then it will level off at a few megabytes per second. My testing indicates the best speed you will get is in the high twenties of megabytes per second, or pretty much USB 2 speeds. This doesnt seem to be a limitation of my system, because even spinning rust drives can sustain a minimum of 60 MB/s, and more usually around 80. So these have an adequate amount of capacity for the price, can read reasonably fast (over 100 MB/s), and can write fast in short bursts. But dont count on it for sustained high def video capture for example. Its much more suited for something like overnight backups. The case design is fairly good, no USB port cap, but instead a sliding design. But like a lot of others, its too easy to press on the retraction slider while inserting it into a USB port, so you just have to be careful how you grip it. Otherwise, the keep it open latch is adequate when the slider is not pressed. I would be willing to pay a little extra for a very visible status LED (on while plugged in, quickly flashing when reading or writing). But thats my bad for not looking for that in the description/specs.

Transcend has always made good products when it comes to convenient, portable, reliable memory cards and flash drives. I only deduct one star because it is hard to see this device in my backpack due to the black color of the body. Otherwise, it works as it should. It is fast, it is convenient, and 32GB is more than enough for my current needs. Transcend is also very affordable, especially when compared to other, similar, products. I would recommend the JetFlash 32GB USB 3.0 Flash Drive

Not able to open pics after download. Pics are in an unknown to me format and I’m. It able to open them

Excellent, product and works great storing my information. Only thing is that it does not lock in place when you push it out of the protective sleeve. You have to keep your thumb on the button when you insert it into the usb port on your computer, if you dont it will not seat completely into the usb port (so your computer will not read it) and the flash drive will go back into the protective sleeve. So you have push the flash drive back out and keep your thumb on it to ensure that it is completely seated into the usb port. Other than that one thing, it is a great product.