SanDisk 64GB Ultra Dual Drive Go USB Type-C Flash Drive, Black - SDDDC3-064G-G46

Excellent modern backup storage device. Small, efficient and use USB-C connector.

Convenient USB Drive that can support both USB A and USB C connections. Seems reasonably fast for what the product is, big enough to put a small label on for identification. Seems reliable 6 months into using it.

- Fast: I downloaded the latest CrystalMarkDisk 7.0.0 x64 from the CrystalMark.info web site. I tested the 32GB drive as it came out of the packaging, which comes formatted FAT32. As you can see from the numbers, it clocks average of 5 1GB reads at 155.18MB/sec. That's as fast as you will get from a mechanical hard drive. Writes are 46.77. That is good for a flash drive. - Small: It is almost exactly the size of a AAA battery (triple) except it is thinner. It will be smaller than a normal house key and way smaller than a car key. It's only the length of the USB-C metal end longer than my Kingston 8GB that I have had for years and has been through the war. - OTG: The biggest drawback of my Kingston is no USB-C, which means I need to have an OTG cable available to share it with my phone or someone with a MAC. I plugged it in and it was instantly recognized by my Note 9. - Keychain: I was concerned that the slot might not be large enough for the coupler of my keychain to slide through. There was plenty of room for it and plenty loose on the cable. - 32GB: Looking at benchmarks around the web, I detected a pattern between capacity and speed of USB Flash drives of the same base model, depending on the technology they use. Sometimes the larger capacity ones are faster and sometimes the lower capacity ones are faster. With the SanDisk Ultra Dual Drive Go USB Type-C Flash Drive - SDDDC3 and its close sibling SanDisk Ultra Dual Drive USB Type-C - USB-C, USB 3.1 - SDDDC2, the pattern appears to be the-smaller-the-faster. My test confirms that as well. Bigger is not better for other reasons as well. 32GB is the largest you can go and use the FAT32 format. The FAT32 format can be read by pretty much anything. Also, if you want it to be bootable, FAT32 can be used to boot computers set up secure boot and UEFI and BIOS, without reconfiguring the computer and losing visibility to the computer's hard drive. If you see yourself using it for all of these things, then FAT32 and 32GB max is the only way you can do all of these things from a single USB drive. You will hear people say that with Windows 10, you can partition it and have a FAT32 partition. That's true, but then only Windows 10 and UEFI can read it, and if you use it to boot with, it will be astoundingly slow, and that's the case even if you make a 32GB FAT32 partition on lightning speed SSD, let along a flash drive. - Temperature: People talk about heat, but I checked it with my heat gun which is very accurate. It went from 71F to 72F and back down to 71F. Then I noticed that the closer to the laptop I measured the warmer. I discovered the port area on the laptop was 77F, so I don't know if it heats up measurably at all. - Durability: The jury is still out as to how well it will hold up on my key chain. My metal Kingston has a nasty dent in the NARROW side on the corner, which would had to have taken quite a hit somehow to produce. There seems to be enough plastic where the key chain goes through the holder. The flash drive swivel could be a failure point, however the natural tendency would be for it to streamline within the holder. The area of most concern is the rectangle plug-in of the USB-A end, which is like a vinyl plastic, unlike the metal USB-C end. However, as of this update on 7 weeks later, it's holding up just fine.

After about 4 months of working with this in an IT environment where it was connected to different devices constantly the plastic side (USB-A) started to crack. This makes it a USB-C only device. I will continue to use it because its great, and most of my companies PCs have a USB-C port.

Love this usb drive. I torrent files on my android phone, then copy them to the usb. I then use the usb to play movies on my tv. Very convenient.

Small compact size for both C and A style USB ports so you can easily transfer files from phones and tables to laptops and desktops. It is so fast, you can easily run Linux Mint from this USB drive. Good value for money, supports all major formats, and provides the best connectivity for all your devices. No data loss. However, don't step on it. Durability might be lacking as it does seem to be made of cheap plastic.

Works perfect. Needed fat32.

Perfect for what I needed to download

Perfect to store my serial numbers on for plug-ins that I use between computers

Pues eso, que si tienes un MacBook Pro con puertos USB-C podrás guardar y descargar archivos sin necesidad de adaptador, y si necesitas usarlo en un ordenador con entradas USB-A tradicionales, pues también te vale. Velocidad de escritura muy buena, solo me llama la atención que se calienta mucho aunque lo tengas poco tiempo conectado al ordenador, supongo que es normal y que el fabricante ha escogido el material necesario para que aguante en esas condiciones de temperatura.

小型で非常に使いやすく満足しています。メーカーの信頼は絶大です。

Chiavetta USB piccola, leggera, molto utile visto il doppio ingresso USB 3.1 e type C. Funziona perfettamente, non si è mai bloccata, è veloce e non scalda, inoltre è anche carina esteticamente. 32 giga per un uso normale come foto, documenti, video o piccoli programmi da trasportare sono abbastanza. Se si vuole memorizzare decine di film o centinaia di cd musicali allora è meglio rivolgersi ad hard disk esterni da oltre 500 Giga, meglio se di tipo ssd.

コンパクトで普通に使えます 耐久性は今からです