SanDisk 256GB Ultra Dual Drive Luxe USB Type-C - SDDDC4-256G-G46

I got the 400MB/s. This is my second one. It's full metal so it feels really nice. It is super small so it's very pocket friendly. It is really fast, really holds up to the 400MB/s advertised speed. In fact, it's so small and so fast, I gotta put a leash on it so it doesn't run away. But since it's small and fast, it gets hot. Not skin burning, but still really hot. I was worried so I put a fan in front of it, and it certainly cools down. Overall I'm happy with it.

It's reasonably fast, super compact, and if it's like my old one(16GB, but same build) quite durable.Slight word of warning, it does get HOT in use, but it's actually outputting that heat and getting it away from the flash chips.

I really like this drive it's reliable and hefty and solid--but it gets REALLY hot! I transferred 4-5k photos from an old phone to the drive and by the end i could only touch the drive for a second or two it was so hot, without it feeling like an iron. And if I leave it plugged into my PC consistently, it just gets really hot to the touch. I have the plastic variation of this drive and it is much flimsier technically but does not get even close to as hot. The metal body of the drive is basically a big heat sink! So, buyer beware!

The USB does reach the advertised 400mb/s a second speeds without issue. It also feels very sturdy in the hand and not like it will break just because you yanked on it too hard. The USB C and USB A ends also work with just about any modern day device you come across which is a big help in the IT world since it's compatible with any device I come across. It is rather small though, this is further amplified by the fact that it's also made of smooth metal which tends to have it feel kind of slippery at times.Not so much a con but something I can see contributing to issues in the future is that it does tend to get pretty warm after very minimal use, I'm guessing this is due to it's size and the speeds it's working at, but still, something to keep in mind.Otherwise I am very happy with it, especially considering this is fitting 256GB in such a small form factor.

First of all, I was browsing around for a USB-C flash drive. I mainly see dual drives. The specific USB-C only flash drives are either cheap brands or too pricey. This fits my price range just fine and I don't need to go overboard on buying 1TB or anything. I thought 256Gb was fine because it's a USB, not an external hard drive. I feel like the power isn't there to expect it to meet my file criteria. I came across SanDisk different dual drives, such as the "Ultra Dual Drive" and then "Ultra Dual Drive Go", but after reading their reviews. The speed isn't there. I came across this and the speed was better than both of those. Even though the description says they are all the same speed (150 Megabytes Per Second), but someone in the reviews posted speed test results, so I ended up getting this. The speed so far isn't bad.Important Part:- I plug this into my USB-C port on my desktop, first time it all works fine. 2 Times after, it shuts off my computer. I'm suspecting driver issues, so I've updated my drivers and install any updates I can find for my computer. While everything was installing I thought I had some free time to write this review. Originally it was 3 stars, but then I thought since I'm writing a review, I might as well post a speed test, so I plug in the USB-C and guess what?? It crashed again! (All drivers were done installing, but I didn't restart my computer yet because I wanted to finish writing this review when doing so, luckily I was wary and saved my review in a notepad before plugging in the USB-C). It seems like I need to turn off my computer and plug in the drive before booting up my computer. Kind of a pain to turn off my computer and insert in something that's designed for plug and play. I finally get to do my speed tests and I've included these in the photos for my review. If you're curious about what I'm using to run a speed test, I am using the CrystalDiskMark Shizuku Edition. You can see that I'm a weeb so that I'm really into being the computer nerd I am. The only conclusion I came come to is this flash drive is faulty. I mainly got this to use on my iPad Pro, which seems to work fine. Except for 1 time where it just kind of disconnected from my iPad Pro and no longer shows up (so the USB is causing issues on not just my computer, but also my iPad). I had to unplug and reconnect it. I planned on using this with my iPad for on the go studying, so I store my lectures on the drive. If this keeps up. I'm afraid I'm going to do a whole lot of nothing. I'm going to keep trying this out and see how well it works. I'm going to back up my files on the drive in case it dies on me.- Side note. Since it is a metal body it does run very warm to hot. The build quality seems okay, BUT barely owning it for more than a day. The switch mechanism that flips the USB-C and the traditional Type-A got loose. When I first got it, it's was very sturdy. Now it's starting to dangle... at this point, I'm about to break the switching mechanism off and use it like those fancy non-USB without all the fancy mechanisms.- I'm still going to keep this a little longer because I need it for the time being until I can read some more reviews for a better alternative and I can return this. I'm hoping someone will reach out and maybe help fix these issues? I don't know how SanDisk will handle this.- I gave this 5 stars for easy to use. Yeah, it's easy to plug it in and crash your computer. Any kids can do it. If you have kids and working on a big project without saving yet. Your kid may just decide to plug this USB in because you know. Kids like sticking things into other things... Good Game.

This is a wonderful invention. Format it to NTFS for best performance and storage capacity. Two sizes, so will fit in various ports. Easy to format. Great for a Backup. Transfer to and from is quite simple and fast. Worth the price.

I’ve had more USB-A drives in my life than bad coffee dates, and they all had the same problem: loyal, but one-dimensional. Then this SanDisk Ultra Dual Drive Luxe shows up with two faces—USB-A on one end, USB-C on the other—and suddenly I’m swapping files between my Mac and iPhone like it’s 2025 and I’m living in the future.No adapters. No weird third-party apps. No cloud storage drama. Just click, swivel, plug, done.It’s not trying to be a rock star graphics card or some jaw-dropping tech flex—it’s an affordable stick of memory with a knack for bridging the awkward family reunion that is old-school USB and new-school USB-C. And it does it while looking like a tiny piece of brushed-metal jewelry you could almost wear.If my old USB drives were dependable pickup trucks, this one’s the sleek crossover that still hauls everything you need—but can also slip into tight parking spots without breaking a sweat.Verdict: Not flashy, but that’s the point. This little drive earns its keep by just… working. And in the world of file transfers, that’s pure luxury.