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 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.

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.

works & looks great!

There are two sides to the drive. The smaller connection has a cool hinge design that allows the top to be removed and stay out of the way without losing it. The regular USB end just has a removable cap, which is also called a losable cap. Why in the world would the same hinged cap not be used on both ends? Thats frustrating to me because I will 100% lose this little cap. I know, its in the product description, but I just assumed there would be some sort of cap retention like a small tether or something. For that reason alone, I am hesitant to use this drive. But it works great as far as portable drives go.

The drive is small, easily pocketable and fits in the small pocket of jeans. The product photos shows text printed on the drive but the drive I received has none, its a nice clean silver finish thumb drive. There is no hole for attaching a lanyard. The cap for the USB Type A port attaches to the drive magnetically. The drive casing and cap is metal so should be fairly durable. The metal also helps to dissipate heat when the drive is in use, it gets hot but not burning. When plugged into a Windows 10 PC, the drive was auto detected and already formatted. The drive is able to reach the advertised speed when used with a Type C port. The Type A port was slower but not by too much.