SanDisk - SDDDC2-128G-G46 128GB Ultra Dual Drive USB Type-C - USB-C, USB 3.1 - SDDDC2-128G-G46 Gray

Poor write performance. My camera is always using Sandisk SD cards - I don't go one minute without them. There is, however, a huge problem with this flash drive. This device can read files directly from a hard drive with great speed (150MB/sec). Copies of files to a 3 are handled differently than copies to a 2. This is true in that it allows users to transfer only one file at a time, which is great, but flash drives should hold more than just a single file. Ultimately, the purpose of the drive is to write files to them, to be transferred to another location, and in that regard, the drive fails. *BR>When I first got this drive I performed a test, backing up approximately 15GB. Multi-location 1080p AVCHD video transmission: 6GB. The drive has a capacity of 1TB and it has a USB 3. 0 port. A cheap ADATA 32GB USB 3. 0 external hard drive competes for space with the more expensive USB 2. The files were being copied from an NVMe M flash drive. Due to the fact that I was using two SSDs, there were no bottlenecks, and I was using a USB 3. 0 port for the USB-A end. A laptop, also with an M. slot, only had one compatible port on my motherboard (and later another with the USB-C side. The performance is the same by using two SSDs). I tested the drive's writing speed, which topped out at around 90MBps for a few seconds before dropping to a painfully slow 20MBps on average. As part of the same test, ADATA USB 3. 0 devices achieved excellent results. It writes at a constant rate of *50MBps and the USB 3. 0 flash drive can write at a steady rate of 50MBps. I have 0 external hard drive that writes at 90Mbps. files under 500MB, this won't make much difference, but for files over 500MB, you should expect your wait times to extend significantly.
A cheap USB 3 has a writing speed over two times that of this drive. It's crazy to have a 0 flash drive. USB 3 is only available when you purchase a MacBook Pro. As an example, its fastest speed is reading, but in order to read anything from it in the first place, you have to write into it painstakingly slowly. In other words, it's a very niche drive that's good primarily for short bursts of writing files. You wouldn't need USB 3 for that. To begin with, you will only have 1 speed. Although if this were only a small capacity drive, that may make some sense, but since it is able to go up to 128GB, it is appealing to those wishing to copy large files over One exception would be copying files from a smartphone, but at that point, the phone comes with a USB-C cable for charging, which would work just as well or even faster. There is no reasonable scenario in which this could be recommended.

Joyce Hughes

| Feb 17, 2021

I expected the drive to transfer fast and do what I expected to do, but I did not expect it to get as hot as 130F under heavy use. On a flash drive that size, I would expect it to be hot once I've encrypted it, so I would have expected it would take a little while to do that. During the encryption, this thing read 120-130 degrees from the beginning to the end, so hot that it burns your hands. Reviews on other Scan Disk flash drives indicate that this is a common problem that they want to ignore, always responding to reviews like this with the claim that "SanDisk drives comply with industry specific standards and remain within acceptable temperature ranges under normal operating conditions in USB flash drive devices. ". There are a lot of people who complain about this and they always seem to have the same response, and it is not 90F right now in my house. SanDisk's drives comply with IEC 60950-1 standards. There are a couple of weeks left for me to decide if I am going to return this to Amazon and get something else. I do not know what I will do, but thought people should be aware.

Alisson Bailey

| Jun 19, 2021

I used the USB C to connect to the Samsung Galaxy book for the first time. . . SMALL FILE writing speed (small files) is 4 Mbps-18 Mbps. I am not very happy about that. I am unsure whether the product is genuine SanDisk because it has a paper sticker covering the original barcode, which is a completely different number from the original. So far I am not impressed. No. 1 performs any better than No.

Alfredo Savage

| Jan 09, 2021

This is a terrible product, at least as far as the manufacturer's claims are concerned. In the event of a refund, I will do so in full. Assuming that you are using a new HP Spectre X360 with Windows 10 Pro, the SanDisk is already connected to the USB-C port. If you are using another computer, please let me know how you got on. There are essentially no other applications open. In the range of 1-10 MB/s, I'm getting good transfer rates. a few instances of almost 20 MB/s, but they only lasted for a few seconds. Checking my speed, I'm getting less than 10 KB/s (yes, those are KB, not MB).

Delighted to hear that.

Vivian Hopkins

| Jul 17, 2021

Fits both ports C and A. Although some complain about speed, I am very impressed with this drive. Where older USB 2 drives completely fail, this drive excels. occurs when many small files are copied or moved. A USB 2 would take twenty minutes to copy hundreds of tiny files, but with Bluelight, it works in a matter of seconds. The drive I have is so much faster than the one I have. Why is that? In all honesty, I have no idea. However, it can read large files at a rate of 150 MB per second. A sustained 20 MB per second is a very respectable speed (it starts higher, but never slows down to less than 20 MB per second.

Please do not misunderstand, true speed test of a drive is sustained speed over time. Is it hot when you're there? The answer is yes. It was hot enough for me to feel it, but not hot enough for me to burn. A fast disk drive is definitely safe to the drive itself.

Gasping for air probably does decrease the life of the drive, but I would not expect it to last that long. If you agree, please spend some time thinking about it. Back in the day, the biggest flash drive you could buy was around 128 MB. It is more than a thousand times heavier than that drive. I really hope it is outdated by then. I ask you not to say it is burning hot on the drive. You have a point of view there. Although I appreciate the information, it would be better to know what actual temperature the drive reaches as well as the temperature of the computer's ambient port. Some of you must have one of those handy infrared thermometers, right? It's a pity I don't. I hope you enjoyed reading this.

Mabel Jensen

| Jan 07, 2021