SanDisk 512GB Ultra Dual Drive Luxe USB Type-C - Up to 400MB/s - SDDDC4-512G-G46GD

Perfect for my needs as standards are switching from USB-A to USB-C. This is great for either.

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.

I love this dual ended memory stick. Can be used with USB or USB - C. Very portable, easy to keep in your bag or even a wallet. Works great, no problems at all.

I bought this to carry on my key ring so that I could transfer demos and clips between my phone and my laptop on the go. I like this drive, but there's a couple things you should know.Build Quality ✅- The drive is built well and very minimalistic. USB-A side is made of metal and the rotation between the two ports has a satisfying click. No sign of weak points, no complaints here.Speed ☑️- Speed is relative, but it's plenty for me. USB-A side scored 382mb/s read speed and 152mb/s write, while the USB-C side scored surprisingly lower at 358mb/s read and 136mb/s write. The test was done on a TB4 laptop so not sure what happened here. It's possible the drive is optimized for USB A. Regardless, these speeds are good for me, but could be a deal-breaker to some.Thermals 📛- The reviews scattered here are true. This drive got pretty hot after only one test and I'm a little worried about long-term reliability when it's cooking like this. To it's credit, running a test in its hot-state only dropped the speed by ~3mb/s. Luckily this drive cools pretty quickly as well.Size and features ✅- Coming in at around 4.5cm, this drive is small. Not tiny, but small. The key ring addition was my main reason for purchasing and it seems nice. I do wish it had a quick-detach ability but I knew it didn't have that going into this so I can't dock any points. Overall not bad.Value ✅- $25 is hard to beat for a 256GB flash drive from a reputable brand. Especially when you consider it's only $7 more than the 128GB variant. Add in the dual-ports, adequate speed, key ring attachment and all metal body, I think it's a pretty good value for people looking for something with these features, but if you don't need them, you may find better value elsewhere.Conclusion- This is a good quality drive with good speeds and a tendency to get hot. I won't be returning it but with that being said I will be watching it for any issues overheating.

works great

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.

Super.