This drive is as advertised. I tested it in Crystal Disk using the usb-c connector in a thunderbolt 3 port and got exactly 500 MB/s write and 547 MB/s read - so significantly faster than any typical usb flash drive, but obviously not up there with an external nvme drive which test at right about 1000 MB/s on the same thunderbolt 3 port.

Im so glad someone made this device! My phone has so many pictures and videos on it. I wanted an easy way to save them and this is a very easy way to do so. If you have a case on your phone you may need to remove it. I plugged this into my Galaxy 10+ and it mounted with no issues. Transferred all my videos and pictures fairly quickly. Just make sure to unmount the device before removing it from your phone or your phone will freak out and want to be rebooted.

The first thing I noticed when I took this drive out of its nice box, was that it was heavy! This is made out of metal; youre not going to break this on accident. Plugging it in, I saw that the drive already had Android system folders (empty folders) set up on the drive--this would make it easy for transferring/backing up files to the right places with the right names. As described, you can plug it into either a USB-A or C connection. Unfortunately, my phone case interfered with the USB-c connection and I had to remove it--but my case is quite thick. My disk properties showed 256G as expected. Im not caught up with the actual speeds (other reviews have commented on this) but it seemed to transfer quickly to and from the drive--it works for me. I would consider it a little pricey if it were just USB-c or USB-a, but its both--and its metal construction makes it a good deal.

The 256G Smartphone and PC OTG SSD USB Drive is a portable solid-state drive (SSD) with a capacity of 256GB. The drive features dual connectors, including a USB3.2 Type-C connector and a USB-A connector, allowing you to connect the drive to a wide range of devices such as smartphones, tablets, laptops, and PCs. The drive also features on-the-go (OTG) technology, which allows you to use the drive as a bridge between devices, enabling you to easily transfer files, photos, videos, and music between devices without the need for a computer. This makes it a very convenient and versatile device for people who are always on the move and need to carry their files with them. It also features SSD technology, which provides faster data transfer speeds and a more reliable performance than traditional hard disk drives. This makes it a great option for users who need to quickly transfer large files, such as videos, photos or music. I tested by transfer about 200Gb of large files (each file approximately between 2Gb to 8Gb), and the average transferring speed was around 85Mbps, which is great for these portable flash drive. Overall, the 256G Smartphone and PC OTG SSD USB Drive is a great device for anyone who needs a convenient and reliable way to store and transfer their files. Its also great for people who need to transfer files between multiple devices, its small and portable, easy to use, with fast transfer speed and a large storage capacity

I still need to run around with removable media, and came across this Ylmrav 256Gb Smartphone and PC OTG USB Flash Drive, and thought I’d give this a try. It comes in a nice presentation case with very nice padding. It has a nice brushed finish so there’s no issue with fingerprints. It has caps to protect both ends... the USB-A connector, and the USB-C connector. The caps are awesome! For the USB-A end cap it is MAGNETIC. Which means it won’t come loose until you pull on it. The USB-C end swivels out of the way and is also magnetic. I have no concerns that I’ll lose these end caps. I have some specialized utilities, and I did a 13 hr reliability test, where different size data chunks are written to the entire disk in three iterations. No issues whatsoever. On a standard USB 3.0 connection, data transfer rates averaged 352 MB.sec. Sadly, I was not able to test transfer speeds under USB 3.2 protocols. In broad testing, USB 3.0 transfer rates were good. 1.55 GB in 10.6 sec 6.34 GB in 59.2 sec I have no doubt that USB 3.2 rates would be consistently faster. This flash drive just FEELS great too. It’s chunky and solid, and is built like a tank. This is a utility drive I’ll use over and over!

Incredible. 256 gb of storage on a duo usb & usb c drive. Love this little thing. Packs so much power. First test was transferred a 10gb file within 3 mins. Loveeee 10/10 highly recommend