I ordered this USB drive because I occasionally have to swap large video files with clients via USB drive. One client has a newer PC but it has only USB-A type ports. I wanted a USB-C drive that I could easily use on my new M1 MacBook Pro that would also work on my clients USB-A ports on his PC. This USB drive fit the bill as it has both USB-A and USB-C connections. When I opened the box I was very pleased to find that the USB drive has no logo on it to mar the plain silver color zinc alloy metal. It looks and feels like a quality product. I plugged it in the USB-C port of my 2021 M1 MacBook Pro and opened Apples Disk Utility app to see what file system it was formatted with. I was glad to find that it was formatted with the exFAT file system. This is the one I prefer because it works with both Macs and PCs and allows file sizes over 4GB. You could always format to a different file system, but this is the one I needed and would be most useful for the largest number of people. Most shouldnt even have to think about this. I next did a speed test using the Disk Utility app. Speeds were decent, showing almost 300MB/s read speed and about 400MB/s write speed. However, the speed falls significantly short of the 500MB/s speeds claimed in the product listing. Its In the multiple tests I ran, it was 20%-40% slower than claimed. Using BlackMagic disk speed test I got results about 10% faster than Apple Disk Utility test. This speed test is optimized for larger file sizes used in video editing. I got average readings of about 330MB/s read speed and 440MB/s write speed using this disk test. This is still not exactly the 500MB/s claimed but its a bit faster than the other speed test. The speeds are definitely due to the USB drive itself as Im using it on a new Mac with 40GB/s thunderbolt 4 ports which are capable of speeds almost 100x faster than the top speeds I got with this drive. For many uses this isnt much of an issue. These are still fast speeds compared to USB 2.0, but if your work requires transferring huge video files like mine does, youll probably want to know that it may take you up to 20% to 40% longer than youd hoped.

Thumb drives are still getting larger & larger every day, but this 256gb size is a really great size now in my opinion for PCs & Macs or phones with USB-C. Big enough to hold quite a few HD 1080p & even 4k movies & shows, or just tons of various files but not SO large that it breaks the bank! This drive is neat. VERY well made & its USB-C OR USB 3.0 whichever you need or prefer. Transfer speeds were lightning fast & steady the whole way for very large files through the USB-C port and still good & stable through USB 3.0 but the speed did drop off a good bit through USB 3 on large transfers. No drop off at all through USB-C. USB-C speeds were nearly 400 MB/s from my internal SSD to this drive. No noticeable heating up of this drive either. One of the better flash drives Ive had in some time.

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.

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.

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.

This USB flash drive came in a fairly nondescript black box, with no branding on the box or the USB drive itself. I tested with a few different utilities, and it does appear to have 256GB storage. In addition, my speed tests show that it does come close to the 500MB/s read AND write speeds, as advertised. The flash drive itself has a little bit of heft to it. The cap for the USB-C side is not removable and has a swing mechanism design. The cap on the opposite side for USB-A is removable but is magnetic which makes for a satisfying connection. I used both connectors to connect to multiple PCs, Android phones and tablets, iPad Pro, and a MacBook Air with no issues.

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 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!

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

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.