SanDisk 256GB Ultra Fit USB 3.1 Flash Drive - SDCZ430-256G-G46, Black

I love the size. It is quite tiny and can be hidden almost anywhere. For securing information this is the optimal size.

It is tiny but compact, which is very convenient considering my previous 1tb storage looks like a block of brick. So I panicked when I lost the usb after less than 2 months of use, looked everywhere but couldnt find it. So I decided to order another one of the usb again. Then I found my previous usb drive in the laundry a few days later lol. It still works, no data were corrupted from what I have checked! Now Sandisk profits from twice the USB sale, clever girl.

I just plugged it to my laptop and I started saving documents with no issue!

Great product

This flash drive is great as most of Sandisks products are. I love that this is very compact so it does not stick out very far like most flash drives do. 256gb is just enough for my device. Yes, I will buy more if I need them.

Best deal I ever had. Cheaper than Micro-sd, 50MB/s, as small as Bluetooth dongle, so I can keep it in laptop all the time. Wish I found this product earlier. On inner side of package it had activation code for 1 year “RescueProDeluxe”, you can restore deleted documents with it (Works better if you don’t filled any extra data after deleting) Also comes with pre-installed SanDiskSecureAccess Valut, where it can store even 256/256gb of my drive forever, no subscription. Opens only with passcode!

Pros: 1. This drive has been very reliable, and Ive never had any problems with reading or writing data from it. 2. Its tiny! It could, in theory, be plugged into a laptop semi-permanently without much trouble. Cons: 1. The thing is made of cheap, flimsy plastic that looks like it would break if I ever tried to carry it around in my pocket. 2. Its super slow. Plan for USB 2.0 (or worse!) speeds. Other thoughts: Originally I got this for archival purposes, as 512GB flash storage was nothing to sneeze at in 2020. Earlier this year (2023) I switched to a much better archival system, and so nowadays I instead keep it plugged into my main rig as permanent storage, with recycle bin enabled. I basically use it in place of the Downloads folder, for all the stuff, both wanted and unwanted, that you accumulate browsing the internet, watching media, etc. This has allowed me to use my main SSD for more important files, and saved me the inconvenience of upgrading to something larger. So, its definitely nice to have. I wouldnt recommend it though, as there are much better options out there. Speed really does matter a lot.

So far I have two of these flash drives. Both are currently connected to my laptop via a USB 3.0 hub. One is older than the other. Both have been functioning well. I have the 256 gb version on both. Nice amount of space for not a lot of money, helping me keep my hard drive cleaner. At one point I did have the older one directly connected to the computer. Ive not noticed any difference in the transfer rate since I swapped it to the hub, which was something I worried over. Both have nice transfer speeds, more than geared to my needs. *Edit, August 2021* Since I originally wrote this review sometime in 2020, I have invested in several more of these drives. I now have somewhere around 12 to 15 or so ranging in size between 64 gb all the way up to the 512 gb version. They are used in multiple applications. Three are TV drives, attached to the three smart TVs in the house (unless Im adding to them, in which case they spend some time in one of the two USB hubs I have.) One is about to be geared towards my Wii, and the rest are computer storage for my desktop and laptop. Those computer storage ones are the ones that live in the hubs full time. I use them for everything. Ive a massive music collection, and that is now split between about 4 of the 512 gbs. My movies are on another, one is for computer file storage (which is my catch-all drive for program files, pictures, and documents.) I could keep going with the uses I have for these, but the long story short is I no longer have to worry about losing everything if my hard drive fails me. Because even if one or two of these lock up, loss will be minimal. Speed is still not an issue at all, And to date, none have locked up on me, and they see quite a bit of use.

Its tiny but HUGE! SanDisk is the only brand I buy. Theyve never let me down.

Capacity is great. Small profile is great. That claimed 130MB is read speed. Please note... write speeds state UP TO 15X over USB 2 speeds. Key words here are UP TO. I use this device to store flac music files for playback in my car. I have plugged this drive into USB 2, 3 & 3.1 ports for writing purposes. I have seen extremely marginal performance differences between USB 3 & 3.1 (fluctuates between 35 - 55 MB when writing anywhere from 200MB - 2GB at a time). On a USB 2 port I get speeds around 20 MB on average. I will post test results and adjust figures as needed later as I am going from memory at this point. On another point, the frame of this no longer appears to be made of metal. I would say it is made of some type of composite material. I believe this was done with a purpose on the manufacturer to alleviate the heat issues with the previous model (which I also own) While it still gets warm while writing, it no longer gets hot to the touch like the previous model did. The heat dissipates much quicker. Given that, I do worry about the longevity and duability of this device should it have to be used and plugged in frequently in many devices. Overall, it serves my purposes. Write speeds could be better and durability could be an issue. Hence, my reason for three stars. **********Edit********** I have included Crystalmark tests (1 @ 500MB in size for USB 2 & 3). I did 5 tests while having it plugged into a USB 3.1 gen 2 port (1 of each @ 500MB, 1GB, 2GB, 4GB & 8GB). Speeds start dropping down the larger the test file was. Speed breakdown for the images is as follows for those that were wondering: USB 2.0 image is the read speed of 40.22 & write speed of 17.01 USB 3.0 image is the read speed of 126.2 & write speed of 50.41 USB 3.1 gen 2 images are the remaining 5 images as well as the windows copying images Just for a test, I copied over an approximately 4GB video file to the drive via the USB 3.1 gen 2 port (see the windows copying images). At the halfway point of the file, the speed starts to drop off and never recovers. Looks like the video file maintained a good 64 MB until the halfway mark.