Review on High Capacity 64GB USB C Flash Drive - Dual USB 3.0 Pen Drive for Type-C Android, MacBook & More by Tarus Clinton

This is a nice drive and it would be great if it didn't overheat when writing more than 100MB of data. I bought 3 of these drives, 2 x 64GB and 1 x 128GB. All three share the same problem of overheating and transmission delays. I have 40GB of work files that I wanted to back up, but after the first few hundred MB the drive gets incredibly hot and the transfer speed drops to zero. I opened up one of the 64GB drives and attached a heatsink to it with thermal grease and it did exactly the same thing. It got unbearably hot and the speed slowed to a complete standstill. My next option is to actively cool it and see if I can send it non-stop. Or I can transfer 50 or 100MB of data at a time until it warms up, then wait for it to cool, then rinse and repeat. This last option makes a 40GB transfer much longer than a USB 2.0 rated flash drive that has no thermal issues. However, this drive has been capacity tested and appears to be legitimate. It's just that in my experience it's good for random small file transfers, not a dataset.