SanDisk Extreme Pro 256GB, USB 3.2, Solid State Flash Drive, Upto 420MB/s R & 380MB/s W (SDCZ880-256G-G46)

I already possess a 64GB Sandisk Extreme USB flash drive that is really fast and works extremely well. This 256GB Extreme Pro USB flash drive is just as good (if not slightly better in performance) and one of the fastest USB flash drives in the market today. The only difference is that the Extreme looks a lot cooler with red lettering and has a slightly better connector retraction and deployment mechanism vs the Extreme Pro.

You have seen 240mb write speed 400 mb read speed but this is not for 64 or 128gb varient pendrives this is for only 256gb varient... I bought 64gb so on my product they mentioned 100mb write speed and 395mb read speed and I researched on it and found that 128gb varient also 395mb read speed and 180mb write speed.. so on my laptop i5 6th gen old but i added a sata ssd Samsung 860 evo 500gb so ssd to my 64gb pendrive file trasfaring highest 95mbps write speed normally 60-85mbps Most of the time arround 80 and pendrive to my ssd 250-380mbps read speed most of the time arround upto 300... pendrive speed good enough but mentioned speed Wrongly marketing strategy.. i bought it 1600 soo I don't regards because on this price it's very good quality Product

The usb drive is blazing fast. It doesn't give any reason to be disappointed. Build: It has a metallic cladding on the outside, making it extremely durable to free falls and rough usage. Speed: It supports USB 3.1, I could see speeds of 390 MB/s and 310 MB/s for read and write respectively, on my MacBook Pro. Any drive not just this one, shows better speeds when there are fewer but big sized files for transfer, like HD videos. On the other hand having a large number of smaller files like txt files of 2 - 200 KB, it tends to give slower read and write speeds. It can't be completely referred to as value for money as the money spent for this value is too much, but then that's the USP of this drive... SPEED.

This is the worst performing USB drive I have ever seen. It does reach its claimed speeds but only in sequential read and write and that too some times only. In the attached image of its performance you can see that its random write has speeds in kB/s. Thus in real life, it performs even worse than a USB 2.0 drive. In the attached video, notice that I only copied 200 files of about 62MB and still it took more than 2:30 minutes, this is a net speed of less than 0.4MB/s. In my daily use, I've seen it to pause for a while even when opening folders. Even while deleting files, it takes a lot of time. Before buying I felt confident because it was SanDisk and I already own some of their product. But this was such a disappointment from SanDisk. So when I first observed ridiculously low speeds, I thought something else might be wrong but when I seriously tested it on different PC, laptop and OS, I realized that its performance is actually terrible. However, by the time I realized it was too late to return it. I had bought a 256GB version and it is a completely useless product for me now. At such a high price of ~5000 INR, I would have been better with a portable ssd instead. I totally regret buying this and won't be buying anything from SanDisk until I see some positive response from them. And if they really care about their brand names they must recall all the usb drives they sold of this model.

Good

Super good quality!

Works as promoted! Go for it

I already own 128gb SanDisk Extreme Pro which I bought 2-3 years ago and I was very happy with its performance. I still consistently get more then 300 MB/s write speed and it's recognized by Windows as USB Drive, so it is Bootable. Recently I bought 256gb SanDisk Extreme Pro with the expectation that it would perform at least as good as my old 128gb Extreme Pro if not better. But after using it I am highly disappointed for the following reasons: 1. With the same Laptop and same set of files (which are 2gb each) I get nearly 160 MB/s write speed which is half of what I get in my old Extreme Pro. 2. Windows recognizes it as "Local Disk" and not as Removable USB Disk, so you can not make it Bootable. There is no way of changing this behavior. Don't buy it if you want to make it Bootable. Barring these issues this is very well made Flash Drive. You can buy it if you are OK with less than half the advertised write speed and don't need to make it Bootable.

ممتاز

Cumple con los prometido en velocidad de escritura alrededor de 100Mb/s y en lectura llega a 420Mb/s. Si tiene dificultades para alcanzar esas velocidades conecten la memoria a un puerto USB de la tarjeta madre (3.0 para arriba claro) y también verifiquen que el disco de origen o destino sea un SSD. Si hacen transferencias entre HDD y la memoria USB el cuello de botella será el disco.

Çok şık ve klas duruyor. Ancak kötü bir yanı var bunu kullanmaya alisirsaniz bir daha baska usb bellek kullanamazsınız. 8 gb lik dosyayı 300-400 mb/sn hızla aktardı ve başladığı gibi bitti.

ممتاز وسريع في القراءة والكتابة

Great price and perfect storage. Fast upload and download speeds. What else can you ask for?!