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.

I picked this one up to replace a 128GB drive that I use with Ventoy. I had no issues reformatting and partitioning with the Ventoy tool and both Mac and Windows PCs are easily able to read and write to the drive. Several test systems booted from the drive, both USB-A and USB-C ports, with no issues. The drive is in a metal case and has a nice weight to it. The USB-C side has a swing-away cover and the USB-A side has a magnetically attached cover. Overall, super happy with this one.

VERY SATISFIED! Extremely fast transfer speed, lots of space. It cannot (physically) connect to my phone with a larger case, but will on my slimmer tablet case. This allows for easy transfer, compilation, and storage of files from many kinds of devices not just laptops/desktops like other USB storage. For the above reasons, I think this is almost perfect. If it had a narrower neck for the USB-C port, it would be 6 stars and not just 5.

The ylmrav 256GB Smartphone and PC OTG SSD USB Drive comes with both USB-C and USB-A interfaces. The unit has a metallic constructions, which makes it sturdy and also helps with heat dissipation. This ylmrav 256GB SSD USB Drive works with several platforms. I tested it on several devices with Android, MacOS, Chromium and Windows OS. Since it has dual interfaces, I did not have issues switching from devices to devices without the need of an adapter. The ylmrav 256GB SSD USB Drive reached the advertised speed of 550 MB/s read speed and 501 MB/S write speed on a synthetic benchmark. On Windows it reached 513 MB/s write speed and 554 MB/s read speed over USB 3.2. Even when it reached 98% capacity, it was still reaching 400 MB/s write speeds. The ylmrav 256GB SSD USB Drive performed very well when connected to fast interfaces. On a Macbook Pro it reached 486 MB/s read speed and 456 MB/s write speed. On Android devices it reached a max read speed of 440 MB/s and just only 215 MB/s write speed...because it was an USB 3.0 interface. The ylmrav 256GB SSD USB Drive is a fast USB even when almost full. It is a nice USB drive to have when you need to move files fast.

This drive comes in an attractive package. The device itself is nicely designed with a solid metal build and feel. The drive has two-end connectivity, one side USB-C with a swing open cover and the other USB-A with a neat magnetic cover. Performance was fast both for USB-C and USB-A. With many manufacturers starting to switch to only USB-C connectors for external devices, this external drive is a good choice for mobile devices, laptops, and desktops.

I purchased this USB memory stick for the style and the two connector feature for use with both legacy and newer laptops (that have USB-C connectors only). I love the distinctive metal appearance, and the value is good, but its a little pokey on transfer speed; however, for this price, the speed is hardly an overwhelming defect.

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!

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.

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.

I wanted to get this so I could easily connect my phone, pc, or mac to the thumb drive without worrying about needing a adapter. This has a ton of memory for me to store pictures, files, and videos on. It is also nice because I am able to connect my phone to this and transfer photos off of my phone to free up space. It is also a nice device to store videos so I can watch videos from this thumb drive rather than storing it on my phone. It will also work for thunderport on mac but you may need to format the drive in order to transfer to the mac. This is NOT a thunderport device so it will not utilize the full thunderport speed. If you are using it with your mac, it will transfer pretty quick to and from the device. This thumb drive is pretty decently built although the metal is a bit easy to scratch. There is no slot for key ring or lanyard which is a bit of a bummer. You are able to open the cover to use the type c port. The cap is connected to the thumb drive so it is hard to lose. The cap is pretty solid so it will not just pop off on its own. I do wish the USB port cover was the same. This is a pretty thick thumb drive so it may take up more than one slot. The price as well is pretty reasonable for a thumb drive of this size. The cap is nice because now there will not be any exposed plugs. The case is easy to get scratched up though. Overall this a good flash drive to have if you happen to need to empty your phone or even transferring data between devices via type c. Please note this is not a thunderbolt plug but it will work on a thunderbolt port. It has plenty of space so it can store a good amount of pictures. I do wish it had some kind of key ring slot as you can lose this drive.