SanDisk512GB Ultra Dual Drive Luxe USB Type-C - SDDDC4-512G-G46, Black

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.

This little flash drive is a gem. It makes it simple to do data transfers between devices with different types of USB ports, has generous storage capacity, and is very, very fast. It takes just seconds to back up or transfer large data files. It sometimes gets warm when transferring very large files, but the metal case dissipates the heat very quickly. It's a very handy tool to have around if you need to do secure local backups, or securely transfer data between devices.

I used this to back up pictures and videos from my laptop and plug into 65" Samsung for viewing. Backup from the laptop was very fast, no issues. It does get a little warm. Works great with the Samsung television.

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.

This 3.1 USB Flash Drive Is Small, Smaller the Size Of a Pair Of Fingernail Clippers. But, Don't Let the Size Fool You. It Will Hold Every Bit of 1 Tb. And The End Flips Over Give You Both a USB Type-A Connector and a USB Type-C Connector, (Which Will Fit The Modern Androids and Apple Products). So That I Don't Have To UpLoad To My DeskTop Computer Then DownLoad To My Tablet. I Can Connect Straight To The Tablet. I DownLoaded Lots Of Video Files All Over 1 Gb Each and That's a Little Dicey. It Depends On the Memory in Your Computer DeskTop, But I Would Recommend Just DownLoading a Few Files At a Time or a Few Folders At A Time. Do It Quickly One After Another and Windows 10 Will Put These Files To Be Copied In The Copying Que, Then Select the Two Vertical Bars In The Copying Display To Pause Each Copy and Stack Them Up And When One Folder Has Been Copied Then Click On The Arrow For The Next Set In The Que. You Normally Only Have To Do This Once Then Just Update Any File or Folders One At A Time. If You Put Too Much Strain On the BandWidth, It Might Come Back and Tell You Errors Were Found and Ask You To Scan & Repair The Flash Drive, (an Easy Thing To Do). But, Chances Are That If You Just Let It Copy Files While You Are Not Using The Computer It Will DownLoad about 35mb to 65mb Per Second and Be Done, Just A Little At A Time.So, Far, I Highly Recommend This Flash Drive and It's Not Too Bulky to Carry in my Pants Pocket.I Have Mot Experience Any Heat Problem as Others Mentioned. It Get A Little Warm, but No Warmer than My Other SanDisk Flash Drives. I Like The Brand, (Always Quality Products), and I Would Say That This A Genuine SanDisk Product.