VANSUNY USB Flash Drive 64GB, USB 3.1 Flash Drive 400MB/s, Super Speed Solid State USB Drive Thumb Drive Slide Metal USB Memory Stick Zip Drive Jump Drive Pendrive (64G,Black)

UPDATE: I originally said I was only getting half the rated speed from the drive. I couldn't figure out why writing to the drive was faster than reading. I decided that maybe it was corporate software installed on my system, so I repeated the CrystalDiskMark from my personal Laptop (Ivy Bridge era Thinkpad, Windows 10) and got much much faster speeds, both in reading and writing. I don't know if the tests are the same, but you can see a dramatic difference. It appears that the USB speed on my workstation is limited by the controller. I have updated my score to give it 5 stars.Original ReviewReceived the 64 GB flash drive today. It states (on the 64 GB drive version) that read speed is 400 MB, sec. I'm getting 170 MB/sec maximum. Curiously, I'm getting 213 MB/sec max write speed. It is the fastest writing (not reading overall. It is faster with random reads)) flash drive I have, but it's half of the rated read speed. Writing being faster than reading is curious. Is it using some type of ram buffer on-board?My computer (ThinkStation workstation running Windows 7) is USB 3.0 only (so theoretical max speed of 600 MB/sec). I have ensured it is plugged into a USB 3.0 port on the back of the machine. I've tested the drive empty and then after putting about 10 GB of files on it. With a 4 GB archive and a 4GB folder of about 1200 files, the transfer speeds were very fast (peaking above 200 MB / sec).Considering that I'm using this on a workstation that isn't connected to the internet to transfer files, I can live with questionable durability. I need something that is fast that won't corrupt my data over about a 20 minute time period. But I'm sticking to my name-brand USB 3.0 drives for data that I want to carry around with me regularly. It's too suspicious that write speeds are greater than read speeds, and the read speed is less than half of advertised.

I stumbled upon this 64GB flash drive on Amazon and I'm sure glad I did. It's literally the fasted USB flash drive I've ever used, even comparing to the Sandisk Extreme line.I tested by installing a full Linux system (not just an ISO) to it, which it accomplished in less than 2 minutes. This is a good test in that it has both large files (>50MB) and much smaller files. Total files exceed 150,000. Total files written around 5GB.I will withhold comments on reliability and durability till I have more experience, but I'm super impressed already!I'll test more but may add this mfg to my arsenal of flash drives.

First the good. The Read and Write speeds were close to advertised. Loaded Windows 10 on it and in no Time Windows was on my laptop. The Bad. The button that pushes the USB out feels a little weak and the build quality feels slightly cheap but for 16$ I was not expecting much in the build quality department. Bottom line I would recommend this over more expensive USB’s It’s faster then the Sandisk SSD USB I used to have and it cost allot more.

I needed a 64 gb flash drive that was fairly fast, but this drive is awesome. First, I formatted it to FAT32, and according to the Black Magic app, it writes 4 gb files at about 100 MBPS. but, when formatted to NTFS, the write speed went up over 360 MBPS! That’s SSD speeds! I kept it at NTFS because my files often exceed 4 GB in size. Time only will tell how durable 5his drive is. But, so far so good.

This is one of the USB flash drives that advertises 400MB/s transfer speed, and one of the cheapest ones. I put Ubuntu server on it and run it with a Raspberry Pi 4 and it turns out pretty OK.Running disks in Ubuntu shows a Micron chip in its belly. Average read speed 264MB/s and 0.27 average access time.